Pages
- Introduction to the Plugin Developer Handbook
- Part One: The Basics
- Part Two: Hooking into WordPress
- Part Three: Plugin Security
- Part Four: Plugin Components
- Configuration Pages with the Settings API
- Connect to APIs with WP HTTP
- Custom Post Types
- Custom Taxonomies
- Customizing Users and Roles
- Embeddable Functionality with the Shortcode API
- Internationalization
- Localization
- Make it Fast with Caching
- Making Your Plugin Ready For Multisite
- Post Meta Boxes
- Regular Background Tasks with WP Cron
- Part Five: Best Practices
- Part Six: Making Your Plugin
- Part Seven: Releasing on WordPress.org
Test 2.
Ramesh Bhatta are discussing. 
I am very glad to use this