diff --git a/docs/conf.py b/docs/conf.py
index 2152b6f..2f28038 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -1,5 +1,27 @@
+import os
+import pathlib
+import sys
+
+import django
+
+import libcoveweb2.settings
+
 project = "LibCoveWeb2"
 
 master_doc = "index"
 
 html_theme = "odsc_default_sphinx_theme"
+
+extensions = [
+    "sphinx.ext.autodoc",
+]
+
+###### Make Sphinx able to document our python code
+
+# We need to be able to see our code, so add this directory to path
+sys.path.insert(0, str(pathlib.Path("..").resolve()))
+
+# We need to set up Django enough that it won't complain
+libcoveweb2.settings.INSTALLED_APPS += ("libcoveweb2",)
+os.environ["DJANGO_SETTINGS_MODULE"] = "libcoveweb2.settings"
+django.setup()
diff --git a/docs/django-settings.rst b/docs/django-settings.rst
new file mode 100644
index 0000000..05e4934
--- /dev/null
+++ b/docs/django-settings.rst
@@ -0,0 +1,48 @@
+Django Settings
+===============
+
+To use this app you'll need to define several settings
+
+
+
+Process Tasks
+-------------
+
+You need to define a `PROCESS_TASKS` setting. This lists all the tasks that will be processed for each uploaded data, in order of processing.
+
+It should be a list of tuples and every tuple should be `('Python module', 'Python class name')`.
+Each class should extend libcoveweb2.process.base.ProcessDataTask
+
+Example:
+
+.. code-block:: python
+
+    PROCESS_TASKS = [
+        # Get data if not already on disk
+        ("libcoveweb2.process.common_tasks.download_data_task", "DownloadDataTask"),
+        ...
+    ]
+
+Celery Message Queue
+--------------------
+
+Any Celery settings needed must be set up.
+
+At a minimum this will include `CELERY_BROKER_URL`.
+
+
+Settings to copy from library which have sensible defaults
+----------------------------------------------------------
+
+This application also needs a bunch of configuration values that already have defaults set. In most cases you can just reuse these variables.
+
+See TODO for a list of these settings.
+
+To do so, you can do something like this in your Django project's main setting.py file:
+
+.. code-block:: python
+
+    from libcoveweb2 import settings
+    ALLOWED_JSON_CONTENT_TYPES = settings.ALLOWED_JSON_CONTENT_TYPES
+    ALLOWED_JSON_EXTENSIONS = settings.ALLOWED_JSON_EXTENSIONS
+    ...
diff --git a/docs/hosting/requirements.rst b/docs/hosting/requirements.rst
new file mode 100644
index 0000000..b3f9bd3
--- /dev/null
+++ b/docs/hosting/requirements.rst
@@ -0,0 +1,30 @@
+Hosting Requirements
+====================
+
+Python server for the Django app
+----------------------------------
+
+Normal options
+
+Database
+----------
+
+This is tested with PostgreSQL.
+
+Message queue compatible with Celery
+--------------------------------------
+
+Normal options
+
+File Storage
+------------
+
+TODO
+
+Cron tasks
+----------
+
+Some Django management commands should be run on a cron task.
+
+* `expire_files` should be run daily
+
diff --git a/docs/index.rst b/docs/index.rst
index d23eedc..4579007 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -1,3 +1,30 @@
 LibCoveWeb2
 ===========
 
+
+LibCoveWeb2 is a Django application to use as a library in your own Django apps.
+
+It let's you create CoVE apps - CoVE exists to help people:
+
+* Convert data between common formats (e.g. csv to json)
+* Validate data against rules
+* Explore data, that machines find easy, but humans find harder to read
+
+The application consists of:
+
+* Database Models to save details of user submitted data
+* File storage space to save the user submitted data and cache results of processing
+* A message queue
+* Workers to process the data according to tasks you provide (but there is a library of common tasks in this application)
+* A view to show users output information from the cache of results
+
+
+.. toctree::
+   :maxdepth: 2
+
+   django-settings.rst
+   python-api/index.rst
+   migration-from-lib-cove-web.rst
+   hosting/requirements.rst
+   used-by.rst
+
diff --git a/docs/migration-from-lib-cove-web.rst b/docs/migration-from-lib-cove-web.rst
new file mode 100644
index 0000000..ce96db7
--- /dev/null
+++ b/docs/migration-from-lib-cove-web.rst
@@ -0,0 +1,13 @@
+Migration from lib-cove-web
+===========================
+
+
+This library is an updated version of the previous library ( https://github.com/OpenDataServices/lib-cove-web ).
+
+However, the structure of the library and how it works have massive changes.
+For this reason the upgrade path isn't a simple upgrade, but requires rewriting work in the software that uses this.
+
+This is why this library is a separate git repository and a separate pypi package,
+so that development of the previous library can also continue and users are not forced to upgrade before they are ready.
+
+
diff --git a/docs/python-api/index.rst b/docs/python-api/index.rst
new file mode 100644
index 0000000..8c77df4
--- /dev/null
+++ b/docs/python-api/index.rst
@@ -0,0 +1,15 @@
+Python API
+==========
+
+This section documents the Python API that software using this library should consider.
+
+It does not document Python that is not intended for reuse by others (you can read the source code for that.)
+
+
+.. toctree::
+   :maxdepth: 2
+
+   settings.rst
+   process/base.rst
+   process/common_tasks/download_data_task.rst
+   process/common_tasks/task_with_state.rst
diff --git a/docs/python-api/process/base.rst b/docs/python-api/process/base.rst
new file mode 100644
index 0000000..949f131
--- /dev/null
+++ b/docs/python-api/process/base.rst
@@ -0,0 +1,5 @@
+Process Task Base
+=================
+
+.. autoclass:: libcoveweb2.process.base.ProcessDataTask
+   :members:
diff --git a/docs/python-api/process/common_tasks/download_data_task.rst b/docs/python-api/process/common_tasks/download_data_task.rst
new file mode 100644
index 0000000..f33e39a
--- /dev/null
+++ b/docs/python-api/process/common_tasks/download_data_task.rst
@@ -0,0 +1,5 @@
+Common Process Task: Download Data Task
+=======================================
+
+
+.. autoclass:: libcoveweb2.process.common_tasks.download_data_task.DownloadDataTask
diff --git a/docs/python-api/process/common_tasks/task_with_state.rst b/docs/python-api/process/common_tasks/task_with_state.rst
new file mode 100644
index 0000000..ec27fe6
--- /dev/null
+++ b/docs/python-api/process/common_tasks/task_with_state.rst
@@ -0,0 +1,7 @@
+Common Process Task: Task With State
+====================================
+
+
+.. autoclass:: libcoveweb2.process.common_tasks.task_with_state.TaskWithState
+   :members: state_filename, process_get_state
+
diff --git a/docs/python-api/settings.rst b/docs/python-api/settings.rst
new file mode 100644
index 0000000..9134811
--- /dev/null
+++ b/docs/python-api/settings.rst
@@ -0,0 +1,10 @@
+Settings
+========
+
+The application includes a settings module with several settings with default values.
+If you don't need to change them, you can just take the defaults from this module.
+See TODO for more information on setting up the settings you need.
+
+.. automodule:: libcoveweb2.settings
+   :members:
+
diff --git a/docs/used-by.rst b/docs/used-by.rst
new file mode 100644
index 0000000..9e457ff
--- /dev/null
+++ b/docs/used-by.rst
@@ -0,0 +1,10 @@
+Used by
+=======
+
+This library is used by:
+
+* https://github.com/openownership/cove-bods
+* https://github.com/Open-Telecoms-Data/cove-ofds
+* https://github.com/GFDRR/rdls-cove
+
+
diff --git a/libcoveweb2/process/base.py b/libcoveweb2/process/base.py
index a7f8374..51e28f9 100644
--- a/libcoveweb2/process/base.py
+++ b/libcoveweb2/process/base.py
@@ -18,6 +18,7 @@ def is_processing_applicable(self) -> bool:
 
         eg. A task to convert a spreadsheet to JSON will never be applicable
             if JSON is uploaded in the first place.
+
         eg. A task to check the data against JSON Schema will always be applicable.
         """
         return False
diff --git a/libcoveweb2/process/common_tasks/download_data_task.py b/libcoveweb2/process/common_tasks/download_data_task.py
index 17e05bf..dd65aaa 100644
--- a/libcoveweb2/process/common_tasks/download_data_task.py
+++ b/libcoveweb2/process/common_tasks/download_data_task.py
@@ -2,7 +2,9 @@
 
 
 class DownloadDataTask(ProcessDataTask):
-    """If user gave us a URL, we download it now."""
+    """If user gave us a URL, we download it now.
+
+    It is possible for apps to use this class with no further configuration."""
 
     def is_processing_applicable(self) -> bool:
         for supplied_data_file in self.supplied_data_files:
diff --git a/libcoveweb2/process/common_tasks/task_with_state.py b/libcoveweb2/process/common_tasks/task_with_state.py
index 9ae068b..5ada3da 100644
--- a/libcoveweb2/process/common_tasks/task_with_state.py
+++ b/libcoveweb2/process/common_tasks/task_with_state.py
@@ -13,10 +13,10 @@ class TaskWithState(ProcessDataTask):
     Extend and provide your own state_filename and process_get_state.
     """
 
-    """Set state_filename to a unique name for each task.
-    If you change this name the task will be rerun, so this is is a good way to
-    make sure all underlying data changes if a new version of this bit of cove
-    is released."""
+    #: Set state_filename to a unique name for each task.
+    #: If you change this name the task will be rerun, so this is is a good way to
+    #: make sure all underlying data changes if a new version of this bit of cove
+    #: is released.
     state_filename: str = "task_with_state.py"
 
     def process_get_state(self, process_data: dict):
diff --git a/libcoveweb2/settings.py b/libcoveweb2/settings.py
index 8938158..f4a30c9 100644
--- a/libcoveweb2/settings.py
+++ b/libcoveweb2/settings.py
@@ -29,16 +29,20 @@
     DELETE_FILES_AFTER_DAYS=(int, 7),
 )
 
+#: Details for Piwik/Matamo tracking, if wanted. Should be a dictionary with the following keys: url, site_id and dimension_map
 PIWIK = {
     "url": env("PIWIK_URL"),
     "site_id": env("PIWIK_SITE_ID"),
     "dimension_map": env("PIWIK_DIMENSION_MAP"),
 }
+#: Details for Google Analytics tracking, if wanted. Should be a string of the id.
 GOOGLE_ANALYTICS_ID = env("GOOGLE_ANALYTICS_ID")
 
 VALIDATION_ERROR_LOCATIONS_LENGTH = env("VALIDATION_ERROR_LOCATIONS_LENGTH")
 VALIDATION_ERROR_LOCATIONS_SAMPLE = env("VALIDATION_ERROR_LOCATIONS_SAMPLE")
 
+#: Uploaded data is deleted after a certain number of days to protect privacy, leaving only meta data for usage analysis.
+#: Should be an integer of the number of days.
 DELETE_FILES_AFTER_DAYS = env("DELETE_FILES_AFTER_DAYS")
 
 MEDIA_ROOT = os.path.join(BASE_DIR, "media")
@@ -173,37 +177,42 @@
     },
 }
 
-# Sometimes uploads happen with a generic content type.
-# In this case, we can't rely on content type to detect type.
-# But the type is still allowed, so it's added to
-#   ALLOWED_*_CONTENT_TYPES when they are defined.
+#: Sometimes uploads happen with a generic content type.
+#: In this case, we can't rely on content type to detect type.
+#: But the type is still allowed. Define these generic content-types in a handy variable
+#: so we can also add them to all the ALLOWED_*_CONTENT_TYPES settings.
 ALLOWED_UNKNOWN_CONTENT_TYPES = ["application/octet-stream"]
 
-# JSON details
+#: Allowed types for JSON files
 ALLOWED_JSON_CONTENT_TYPES = ["application/json"] + ALLOWED_UNKNOWN_CONTENT_TYPES
+#: Allowed file extensions for JSON files
 ALLOWED_JSON_EXTENSIONS = [".json"]
 
-# Excel details
+#: Allowed types for Excel files
 ALLOWED_SPREADSHEET_EXCEL_CONTENT_TYPES = [
     "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
 ] + ALLOWED_UNKNOWN_CONTENT_TYPES
+#: Allowed file extensions for Excel files
 ALLOWED_SPREADSHEET_EXCEL_EXTENSIONS = [".xlsx"]
 
-# Open Document details
+#: Allowed types for Open Document files
 ALLOWED_SPREADSHEET_OPENDOCUMENT_CONTENT_TYPES = [
     "application/vnd.oasis.opendocument.spreadsheet",
 ] + ALLOWED_UNKNOWN_CONTENT_TYPES
+#: Allowed file extensions for Open Document files
 ALLOWED_SPREADSHEET_OPENDOCUMENT_EXTENSIONS = [".ods"]
 
-# Spreadsheet details (sum of details above)
+#: Allowed types for Spreadsheet files (sum of Excel and Open Document)
 ALLOWED_SPREADSHEET_CONTENT_TYPES = (
     ALLOWED_SPREADSHEET_EXCEL_CONTENT_TYPES
     + ALLOWED_SPREADSHEET_OPENDOCUMENT_CONTENT_TYPES
 )
+#: Allowed file extensions for Spreadsheet files (sum of Excel and Open Document)
 ALLOWED_SPREADSHEET_EXTENSIONS = (
     ALLOWED_SPREADSHEET_EXCEL_EXTENSIONS + ALLOWED_SPREADSHEET_OPENDOCUMENT_EXTENSIONS
 )
 
-# CSV Details
+#: Allowed types for CSV files
 ALLOWED_CSV_CONTENT_TYPES = ["text/csv"] + ALLOWED_UNKNOWN_CONTENT_TYPES
+#: Allowed file extensions for CSV files
 ALLOWED_CSV_EXTENSIONS = [".csv"]