diff --git a/README.md b/README.md
index 90caa18..fe9d9b2 100644
--- a/README.md
+++ b/README.md
@@ -166,6 +166,24 @@ Bug Fix. (Reader & Writer)
📄 Writer
+### Constructor
+- ###### (``byte[]`` buffer) : ``Reader`` Create instance using (Byte[]) as internal buffer
+- ###### (``Writer`` writer) : ``Reader`` Create instance using (Writer) as internal buffer
+- ###### (ref ``Writer`` writer) : ``Reader`` Create instance using (Writer) as internal buffer
+
+### Proprieties
+
+- ###### Success : ``bool`` Return true if deserialized successful.
+- ###### Position : ``int`` Return current read index.
+- ###### Length : ``int`` Return buffer length.
+
+### Methods
+
+- ###### Seek(``int`` position) : ``void`` Move position (internal buffer index)
+- ###### Read<``T``>() : ``T`` Read content from iternal buffer.
+- ###### Read<``string``>(``Encoding`` encoding) : ``string`` Read custom encoding string.
+
+
📄 Reader
|