WordPress Plugin Development Cookbook,

Table of Contents

1. Preparing a Local Development Environment
2. Plugin Framework Basics
3. User Settings and Administration Pages
4. The Power of Custom Post Types
5. Customizing Post and Page Editors
6. Extending the Block Editor
7. Accepting User Content Submissions
8. Customizing User Data
9. Leveraging JavaScript, jQuery, and AJAX Scripts
10. Adding New Widgets to the WordPress Library
11. Fetching, Caching, and Regularly Updating External Site Data
12. Enabling Plugin Internationalization
13. Distributing Your Plugin on WordPress.org