• API documentation for plugins
• API documentation for recipes
• API documentation for the database interface
• API documentation for the e-book editing tools
• Adding your favorite news website
• All about using regular expressions in calibre
• Comparing e-books
• Creating AZW3 • EPUB • MOBI catalogs
• Customizing calibre
• Digital Rights Management (DRM)
• E-book conversion
• Editing e-book metadata
• Editing e-books
• Frequently Asked Questions
• Function mode for Search & replace in the Editor
• Glossary
• Managing subgroups of books, for example “genre”
• Python Module Index
• Quick reference for regexp syntax
• Setting up a calibre development environment
• Snippets
• The E-book viewer
• The Graphical User Interface
• The calibre Content server
• The calibre template language
• The calibre:// URL scheme
• Typesetting mathematics in e-books
• Virtual libraries
• Writing your own plugins to extend calibre’s functionality
• XPath tutorial
• calibre User Manual