diff --git a/.gitignore b/.gitignore
index 0b9d0608d0..6918df72e6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,6 +12,7 @@ _build
 /build
 phpunit.xml
 composer.phar
+composer.lock
 vendor
 /report
 /build
diff --git a/composer.json b/composer.json
index efebe941e7..48fc16caed 100644
--- a/composer.json
+++ b/composer.json
@@ -108,13 +108,13 @@
     "require": {
         "php": "^7.1|^8.0",
         "ext-dom": "*",
-        "ext-gd": "*",
         "ext-json": "*",
         "ext-xml": "*",
-        "ext-zip": "*",
         "phpoffice/math": "^0.2"
     },
     "require-dev": {
+        "ext-zip": "*",
+        "ext-gd": "*",
         "ext-libxml": "*",
         "dompdf/dompdf": "^2.0 || ^3.0",
         "friendsofphp/php-cs-fixer": "^3.3",
diff --git a/src/PhpWord/IOFactory.php b/src/PhpWord/IOFactory.php
index 55c374a8b9..50c419cae2 100644
--- a/src/PhpWord/IOFactory.php
+++ b/src/PhpWord/IOFactory.php
@@ -36,7 +36,7 @@ abstract class IOFactory
      */
     public static function createWriter(PhpWord $phpWord, $name = 'Word2007')
     {
-        if ($name !== 'WriterInterface' && !in_array($name, ['ODText', 'RTF', 'Word2007', 'HTML', 'PDF'], true)) {
+        if ($name !== 'WriterInterface' && !in_array($name, ['ODText', 'RTF', 'Word2007', 'HTML', 'PDF', 'EPub3'], true)) {
             throw new Exception("\"{$name}\" is not a valid writer.");
         }
 
diff --git a/src/PhpWord/Writer/EPub3.php b/src/PhpWord/Writer/EPub3.php
new file mode 100644
index 0000000000..b9eb5a00f2
--- /dev/null
+++ b/src/PhpWord/Writer/EPub3.php
@@ -0,0 +1,91 @@
+<?php
+
+/**
+ * This file is part of PHPWord - A pure PHP library for reading and writing
+ * word processing documents.
+ *
+ * PHPWord is free software distributed under the terms of the GNU Lesser
+ * General Public License version 3 as published by the Free Software Foundation.
+ *
+ * For the full copyright and license information, please read the LICENSE
+ * file that was distributed with this source code. For the full list of
+ * contributors, visit https://github.com/PHPOffice/PHPWord/contributors.
+ *
+ * @see         https://github.com/PHPOffice/PHPWord
+ *
+ * @license     http://www.gnu.org/licenses/lgpl.txt LGPL version 3
+ */
+
+namespace PhpOffice\PhpWord\Writer;
+
+use PhpOffice\PhpWord\Media;
+use PhpOffice\PhpWord\PhpWord;
+use PhpOffice\PhpWord\Writer\EPub3\Part\AbstractPart;
+
+/**
+ * EPub3 writer.
+ */
+class EPub3 extends AbstractWriter implements WriterInterface
+{
+    /**
+     * Create new EPub3 writer.
+     */
+    public function __construct(?PhpWord $phpWord = null)
+    {
+        // Assign PhpWord
+        $this->setPhpWord($phpWord);
+
+        // Create parts
+        $this->parts = [
+            'Mimetype' => 'mimetype',
+            'Content' => 'content.opf',
+            'Toc' => 'toc.ncx',
+            'Styles' => 'styles.css',
+            'Manifest' => 'META-INF/container.xml',
+        ];
+        foreach (array_keys($this->parts) as $partName) {
+            $partClass = static::class . '\\Part\\' . $partName;
+            if (class_exists($partClass)) {
+                /** @var AbstractPart $partObject Type hint */
+                $partObject = new $partClass();
+                $partObject->setParentWriter($this);
+                $this->writerParts[strtolower($partName)] = $partObject;
+            }
+        }
+
+        // Set package paths
+        $this->mediaPaths = ['image' => 'Images/', 'object' => 'Objects/'];
+    }
+
+    /**
+     * Save PhpWord to file.
+     */
+    public function save(string $filename): void
+    {
+        $filename = $this->getTempFile($filename);
+        $zip = $this->getZipArchive($filename);
+
+        // Add section media files
+        $sectionMedia = Media::getElements('section');
+        if (!empty($sectionMedia)) {
+            $this->addFilesToPackage($zip, $sectionMedia);
+        }
+
+        // Write parts
+        foreach ($this->parts as $partName => $fileName) {
+            if ($fileName === '') {
+                continue;
+            }
+            $part = $this->getWriterPart($partName);
+            if (!$part instanceof AbstractPart) {
+                continue;
+            }
+
+            $zip->addFromString($fileName, $part->write());
+        }
+
+        // Close zip archive and cleanup temp file
+        $zip->close();
+        $this->cleanupTempFile();
+    }
+}
diff --git a/src/PhpWord/Writer/EPub3/Part/AbstractPart.php b/src/PhpWord/Writer/EPub3/Part/AbstractPart.php
new file mode 100644
index 0000000000..c3b79b2d26
--- /dev/null
+++ b/src/PhpWord/Writer/EPub3/Part/AbstractPart.php
@@ -0,0 +1,63 @@
+<?php
+
+/**
+ * This file is part of PHPWord - A pure PHP library for reading and writing
+ * word processing documents.
+ *
+ * PHPWord is free software distributed under the terms of the GNU Lesser
+ * General Public License version 3 as published by the Free Software Foundation.
+ *
+ * For the full copyright and license information, please read the LICENSE
+ * file that was distributed with this source code. For the full list of
+ * contributors, visit https://github.com/PHPOffice/PHPWord/contributors.
+ *
+ * @see         https://github.com/PHPOffice/PHPWord
+ *
+ * @license     http://www.gnu.org/licenses/lgpl.txt LGPL version 3
+ */
+
+namespace PhpOffice\PhpWord\Writer\EPub3\Part;
+
+use PhpOffice\PhpWord\Writer\AbstractWriter;
+
+/**
+ * Abstract class for EPub3 parts.
+ */
+abstract class AbstractPart
+{
+    /**
+     * Parent writer.
+     *
+     * @var AbstractWriter
+     */
+    protected $parentWriter;
+
+    /**
+     * Set parent writer.
+     *
+     * @return self
+     */
+    public function setParentWriter(AbstractWriter $writer)
+    {
+        $this->parentWriter = $writer;
+
+        return $this;
+    }
+
+    /**
+     * Get parent writer.
+     *
+     * @return AbstractWriter
+     */
+    public function getParentWriter()
+    {
+        return $this->parentWriter;
+    }
+
+    /**
+     * Write part content.
+     *
+     * @return string
+     */
+    abstract public function write();
+}
diff --git a/src/PhpWord/Writer/EPub3/Part/Content.php b/src/PhpWord/Writer/EPub3/Part/Content.php
new file mode 100644
index 0000000000..add42b35c5
--- /dev/null
+++ b/src/PhpWord/Writer/EPub3/Part/Content.php
@@ -0,0 +1,49 @@
+<?php
+
+/**
+ * This file is part of PHPWord - A pure PHP library for reading and writing
+ * word processing documents.
+ *
+ * PHPWord is free software distributed under the terms of the GNU Lesser
+ * General Public License version 3 as published by the Free Software Foundation.
+ *
+ * For the full copyright and license information, please read the LICENSE
+ * file that was distributed with this source code. For the full list of
+ * contributors, visit https://github.com/PHPOffice/PHPWord/contributors.
+ *
+ * @see         https://github.com/PHPOffice/PHPWord
+ *
+ * @license     http://www.gnu.org/licenses/lgpl.txt LGPL version 3
+ */
+
+namespace PhpOffice\PhpWord\Writer\EPub3\Part;
+
+/**
+ * Class for EPub3 content part.
+ */
+class Content extends AbstractPart
+{
+    /**
+     * Write part content.
+     *
+     * @return string
+     */
+    public function write()
+    {
+        $content = '<?xml version="1.0" encoding="UTF-8"?>';
+        $content .= '<package xmlns="http://www.idpf.org/2007/opf" version="3.0">';
+        $content .= '<metadata xmlns:dc="http://purl.org/dc/elements/1.1/">';
+        $content .= '<dc:title>Sample EPub3 Document</dc:title>';
+        $content .= '<dc:language>en</dc:language>';
+        $content .= '</metadata>';
+        $content .= '<manifest>';
+        $content .= '<item id="content" href="content.xhtml" media-type="application/xhtml+xml"/>';
+        $content .= '</manifest>';
+        $content .= '<spine>';
+        $content .= '<itemref idref="content"/>';
+        $content .= '</spine>';
+        $content .= '</package>';
+
+        return $content;
+    }
+}
diff --git a/src/PhpWord/Writer/EPub3/Part/Manifest.php b/src/PhpWord/Writer/EPub3/Part/Manifest.php
new file mode 100644
index 0000000000..9c5143f434
--- /dev/null
+++ b/src/PhpWord/Writer/EPub3/Part/Manifest.php
@@ -0,0 +1,42 @@
+<?php
+
+/**
+ * This file is part of PHPWord - A pure PHP library for reading and writing
+ * word processing documents.
+ *
+ * PHPWord is free software distributed under the terms of the GNU Lesser
+ * General Public License version 3 as published by the Free Software Foundation.
+ *
+ * For the full copyright and license information, please read the LICENSE
+ * file that was distributed with this source code. For the full list of
+ * contributors, visit https://github.com/PHPOffice/PHPWord/contributors.
+ *
+ * @see         https://github.com/PHPOffice/PHPWord
+ *
+ * @license     http://www.gnu.org/licenses/lgpl.txt LGPL version 3
+ */
+
+namespace PhpOffice\PhpWord\Writer\EPub3\Part;
+
+/**
+ * Class for EPub3 manifest part.
+ */
+class Manifest extends AbstractPart
+{
+    /**
+     * Write part content.
+     *
+     * @return string
+     */
+    public function write()
+    {
+        $content = '<?xml version="1.0" encoding="UTF-8"?>';
+        $content .= '<container version="1.0" xmlns="urn:oasis:names:tc:opendocument:xmlns:container">';
+        $content .= '<rootfiles>';
+        $content .= '<rootfile full-path="content.opf" media-type="application/oebps-package+xml"/>';
+        $content .= '</rootfiles>';
+        $content .= '</container>';
+
+        return $content;
+    }
+}
diff --git a/src/PhpWord/Writer/EPub3/Part/Meta.php b/src/PhpWord/Writer/EPub3/Part/Meta.php
new file mode 100644
index 0000000000..04531f45d2
--- /dev/null
+++ b/src/PhpWord/Writer/EPub3/Part/Meta.php
@@ -0,0 +1,43 @@
+<?php
+
+/**
+ * This file is part of PHPWord - A pure PHP library for reading and writing
+ * word processing documents.
+ *
+ * PHPWord is free software distributed under the terms of the GNU Lesser
+ * General Public License version 3 as published by the Free Software Foundation.
+ *
+ * For the full copyright and license information, please read the LICENSE
+ * file that was distributed with this source code. For the full list of
+ * contributors, visit https://github.com/PHPOffice/PHPWord/contributors.
+ *
+ * @see         https://github.com/PHPOffice/PHPWord
+ *
+ * @license     http://www.gnu.org/licenses/lgpl.txt LGPL version 3
+ */
+
+namespace PhpOffice\PhpWord\Writer\EPub3\Part;
+
+/**
+ * Class for EPub3 metadata part.
+ */
+class Meta extends AbstractPart
+{
+    /**
+     * Write part content.
+     *
+     * @return string
+     */
+    public function write()
+    {
+        $content = '<?xml version="1.0" encoding="UTF-8"?>';
+        $content .= '<metadata xmlns="http://www.idpf.org/2007/opf">';
+        $content .= '<dc:title>Sample EPub3 Document</dc:title>';
+        $content .= '<dc:language>en</dc:language>';
+        $content .= '<dc:identifier id="bookid">urn:uuid:12345</dc:identifier>';
+        $content .= '<meta property="dcterms:modified">2023-01-01T00:00:00Z</meta>';
+        $content .= '</metadata>';
+
+        return $content;
+    }
+}
diff --git a/src/PhpWord/Writer/EPub3/Part/Mimetype.php b/src/PhpWord/Writer/EPub3/Part/Mimetype.php
new file mode 100644
index 0000000000..36dc9168b1
--- /dev/null
+++ b/src/PhpWord/Writer/EPub3/Part/Mimetype.php
@@ -0,0 +1,35 @@
+<?php
+
+/**
+ * This file is part of PHPWord - A pure PHP library for reading and writing
+ * word processing documents.
+ *
+ * PHPWord is free software distributed under the terms of the GNU Lesser
+ * General Public License version 3 as published by the Free Software Foundation.
+ *
+ * For the full copyright and license information, please read the LICENSE
+ * file that was distributed with this source code. For the full list of
+ * contributors, visit https://github.com/PHPOffice/PHPWord/contributors.
+ *
+ * @see         https://github.com/PHPOffice/PHPWord
+ *
+ * @license     http://www.gnu.org/licenses/lgpl.txt LGPL version 3
+ */
+
+namespace PhpOffice\PhpWord\Writer\EPub3\Part;
+
+/**
+ * Class for EPub3 mimetype part.
+ */
+class Mimetype extends AbstractPart
+{
+    /**
+     * Write part content.
+     *
+     * @return string
+     */
+    public function write()
+    {
+        return 'application/epub+zip';
+    }
+}
diff --git a/src/PhpWord/Writer/EPub3/Style/AbstractStyle.php b/src/PhpWord/Writer/EPub3/Style/AbstractStyle.php
new file mode 100644
index 0000000000..49e22b5852
--- /dev/null
+++ b/src/PhpWord/Writer/EPub3/Style/AbstractStyle.php
@@ -0,0 +1,63 @@
+<?php
+
+/**
+ * This file is part of PHPWord - A pure PHP library for reading and writing
+ * word processing documents.
+ *
+ * PHPWord is free software distributed under the terms of the GNU Lesser
+ * General Public License version 3 as published by the Free Software Foundation.
+ *
+ * For the full copyright and license information, please read the LICENSE
+ * file that was distributed with this source code. For the full list of
+ * contributors, visit https://github.com/PHPOffice/PHPWord/contributors.
+ *
+ * @see         https://github.com/PHPOffice/PHPWord
+ *
+ * @license     http://www.gnu.org/licenses/lgpl.txt LGPL version 3
+ */
+
+namespace PhpOffice\PhpWord\Writer\EPub3\Style;
+
+use PhpOffice\PhpWord\Writer\AbstractWriter;
+
+/**
+ * Abstract class for EPub3 styles.
+ */
+abstract class AbstractStyle
+{
+    /**
+     * Parent writer.
+     *
+     * @var AbstractWriter
+     */
+    protected $parentWriter;
+
+    /**
+     * Set parent writer.
+     *
+     * @return self
+     */
+    public function setParentWriter(AbstractWriter $writer)
+    {
+        $this->parentWriter = $writer;
+
+        return $this;
+    }
+
+    /**
+     * Get parent writer.
+     *
+     * @return AbstractWriter
+     */
+    public function getParentWriter()
+    {
+        return $this->parentWriter;
+    }
+
+    /**
+     * Write style content.
+     *
+     * @return string
+     */
+    abstract public function write();
+}
diff --git a/src/PhpWord/Writer/EPub3/Style/Font.php b/src/PhpWord/Writer/EPub3/Style/Font.php
new file mode 100644
index 0000000000..3f3ffd1544
--- /dev/null
+++ b/src/PhpWord/Writer/EPub3/Style/Font.php
@@ -0,0 +1,41 @@
+<?php
+
+/**
+ * This file is part of PHPWord - A pure PHP library for reading and writing
+ * word processing documents.
+ *
+ * PHPWord is free software distributed under the terms of the GNU Lesser
+ * General Public License version 3 as published by the Free Software Foundation.
+ *
+ * For the full copyright and license information, please read the LICENSE
+ * file that was distributed with this source code. For the full list of
+ * contributors, visit https://github.com/PHPOffice/PHPWord/contributors.
+ *
+ * @see         https://github.com/PHPOffice/PHPWord
+ *
+ * @license     http://www.gnu.org/licenses/lgpl.txt LGPL version 3
+ */
+
+namespace PhpOffice\PhpWord\Writer\EPub3\Style;
+
+/**
+ * Class for EPub3 font styles.
+ */
+class Font extends AbstractStyle
+{
+    /**
+     * Write style content.
+     *
+     * @return string
+     */
+    public function write()
+    {
+        $content = 'body {';
+        $content .= 'font-family: "Times New Roman", Times, serif;';
+        $content .= 'font-size: 12pt;';
+        $content .= 'color: #000000;';
+        $content .= '}';
+
+        return $content;
+    }
+}
diff --git a/src/PhpWord/Writer/EPub3/Style/Paragraph.php b/src/PhpWord/Writer/EPub3/Style/Paragraph.php
new file mode 100644
index 0000000000..dddc85e703
--- /dev/null
+++ b/src/PhpWord/Writer/EPub3/Style/Paragraph.php
@@ -0,0 +1,41 @@
+<?php
+
+/**
+ * This file is part of PHPWord - A pure PHP library for reading and writing
+ * word processing documents.
+ *
+ * PHPWord is free software distributed under the terms of the GNU Lesser
+ * General Public License version 3 as published by the Free Software Foundation.
+ *
+ * For the full copyright and license information, please read the LICENSE
+ * file that was distributed with this source code. For the full list of
+ * contributors, visit https://github.com/PHPOffice/PHPWord/contributors.
+ *
+ * @see         https://github.com/PHPOffice/PHPWord
+ *
+ * @license     http://www.gnu.org/licenses/lgpl.txt LGPL version 3
+ */
+
+namespace PhpOffice\PhpWord\Writer\EPub3\Style;
+
+/**
+ * Class for EPub3 paragraph styles.
+ */
+class Paragraph extends AbstractStyle
+{
+    /**
+     * Write style content.
+     *
+     * @return string
+     */
+    public function write()
+    {
+        $content = 'p {';
+        $content .= 'margin-top: 0;';
+        $content .= 'margin-bottom: 1em;';
+        $content .= 'text-align: left;';
+        $content .= '}';
+
+        return $content;
+    }
+}
diff --git a/src/PhpWord/Writer/EPub3/Style/Table.php b/src/PhpWord/Writer/EPub3/Style/Table.php
new file mode 100644
index 0000000000..898ddebff5
--- /dev/null
+++ b/src/PhpWord/Writer/EPub3/Style/Table.php
@@ -0,0 +1,45 @@
+<?php
+
+/**
+ * This file is part of PHPWord - A pure PHP library for reading and writing
+ * word processing documents.
+ *
+ * PHPWord is free software distributed under the terms of the GNU Lesser
+ * General Public License version 3 as published by the Free Software Foundation.
+ *
+ * For the full copyright and license information, please read the LICENSE
+ * file that was distributed with this source code. For the full list of
+ * contributors, visit https://github.com/PHPOffice/PHPWord/contributors.
+ *
+ * @see         https://github.com/PHPOffice/PHPWord
+ *
+ * @license     http://www.gnu.org/licenses/lgpl.txt LGPL version 3
+ */
+
+namespace PhpOffice\PhpWord\Writer\EPub3\Style;
+
+/**
+ * Class for EPub3 table styles.
+ */
+class Table extends AbstractStyle
+{
+    /**
+     * Write style content.
+     *
+     * @return string
+     */
+    public function write()
+    {
+        $content = 'table {';
+        $content .= 'border-collapse: collapse;';
+        $content .= 'width: 100%;';
+        $content .= '}';
+        $content .= 'th, td {';
+        $content .= 'border: 1px solid black;';
+        $content .= 'padding: 8px;';
+        $content .= 'text-align: left;';
+        $content .= '}';
+
+        return $content;
+    }
+}
diff --git a/tests/PhpWordTests/Writer/EPub3Test.php b/tests/PhpWordTests/Writer/EPub3Test.php
new file mode 100644
index 0000000000..44a2060e03
--- /dev/null
+++ b/tests/PhpWordTests/Writer/EPub3Test.php
@@ -0,0 +1,124 @@
+<?php
+
+/**
+ * This file is part of PHPWord - A pure PHP library for reading and writing
+ * word processing documents.
+ *
+ * PHPWord is free software distributed under the terms of the GNU Lesser
+ * General Public License version 3 as published by the Free Software Foundation.
+ *
+ * For the full copyright and license information, please read the LICENSE
+ * file that was distributed with this source code. For the full list of
+ * contributors, visit https://github.com/PHPOffice/PHPWord/contributors.
+ *
+ * @see         https://github.com/PHPOffice/PHPWord
+ *
+ * @license     http://www.gnu.org/licenses/lgpl.txt LGPL version 3
+ */
+
+namespace PhpOffice\PhpWordTests\Writer;
+
+use PhpOffice\PhpWord\PhpWord;
+use PhpOffice\PhpWord\SimpleType\Jc;
+use PhpOffice\PhpWord\Writer\EPub3;
+
+/**
+ * Test class for PhpOffice\PhpWord\Writer\Epub3.
+ *
+ * @runTestsInSeparateProcesses
+ */
+class EPub3Test extends \PHPUnit\Framework\TestCase
+{
+    /**
+     * Test document construction.
+     */
+    public function testConstruct(): void
+    {
+        $object = new EPub3(new PhpWord());
+        self::assertInstanceOf(PhpWord::class, $object->getPhpWord());
+        self::assertEquals('./', $object->getDiskCachingDirectory());
+        foreach (['Content', 'Manifest', 'Mimetype'] as $part) {
+            self::assertInstanceOf(
+                "PhpOffice\\PhpWord\\Writer\\Epub3\\Part\\{$part}",
+                $object->getWriterPart($part)
+            );
+            self::assertInstanceOf(
+                'PhpOffice\\PhpWord\\Writer\\Epub3',
+                $object->getWriterPart($part)->getParentWriter()
+            );
+        }
+    }
+
+    /**
+     * Test construction with null.
+     */
+    public function testConstructWithNull(): void
+    {
+        $this->expectException(\PhpOffice\PhpWord\Exception\Exception::class);
+        $this->expectExceptionMessage('No PhpWord assigned.');
+        $object = new EPub3();
+        $object->getPhpWord();
+    }
+
+    /**
+     * Test saving document.
+     */
+    public function testSave(): void
+    {
+        $imageSrc = __DIR__ . '/../_files/images/PhpWord.png';
+        $file = __DIR__ . '/../_files/temp.epub';
+
+        $phpWord = new PhpWord();
+        $section = $phpWord->addSection();
+        $section->addText('Test 1');
+        $section->addTextBreak();
+        $section->addText('Test 2', null, ['alignment' => Jc::CENTER]);
+        $section->addLink('https://github.com/PHPOffice/PHPWord');
+        $section->addTitle('Test', 1);
+        $section->addPageBreak();
+        $section->addImage($imageSrc);
+        $writer = new EPub3($phpWord);
+        $writer->save($file);
+        self::assertFileExists($file);
+        unlink($file);
+    }
+
+    /**
+     * Test PHP output.
+     */
+    public function testSavePhpOutput(): void
+    {
+        $phpWord = new PhpWord();
+        $section = $phpWord->addSection();
+        $section->addText('Test');
+        $writer = new EPub3($phpWord);
+        ob_start();
+        $writer->save('php://output');
+        $contents = ob_get_contents();
+        self::assertTrue(ob_end_clean());
+        self::assertNotEmpty($contents);
+    }
+
+    /**
+     * Test disk caching.
+     */
+    public function testSetGetUseDiskCaching(): void
+    {
+        $object = new EPub3();
+        $object->setUseDiskCaching(true, PHPWORD_TESTS_BASE_DIR);
+        self::assertTrue($object->isUseDiskCaching());
+        self::assertEquals(PHPWORD_TESTS_BASE_DIR, $object->getDiskCachingDirectory());
+    }
+
+    /**
+     * Test disk caching exception.
+     */
+    public function testSetUseDiskCachingException(): void
+    {
+        $this->expectException(\PhpOffice\PhpWord\Exception\Exception::class);
+        $dir = implode(DIRECTORY_SEPARATOR, [PHPWORD_TESTS_BASE_DIR, 'foo']);
+
+        $object = new EPub3();
+        $object->setUseDiskCaching(true, $dir);
+    }
+}