I love this book, i bought it from amazon.com for $27.06. (aff link).
I highly recommend this book to all WordPress-er, from beginner to expert. I’m a newbie in WordPress Universe, and i learn a lot not only about WordPress Plugins, but also about WordPress Theme, cause it’s important to understand how plugin can interact with theme.
Did you ever play game, and try to find cheats and walk-through so you can finish it. It’s just like that, This book will guide you from start to finish. Professional WordPress Plugin Development Book covers from a very basic how to structure a plugins, how to create shortcodes, to advance WordPress API like WordPress Rewrite APIs, cron jobs, Custom Post Types, and how to integrate non-WP page with WordPress.
Here’s the book content. But first, about the author:
The Authors
Justin Tadlock
Justin Tadlock is the founder of ThemeHybrid.com, which is a popular site that focuses on WordPress themes and plugins for beginner to advanced-level users. He often writes about WordPress on his personal blog, JustinTadlock.com, which has a large following.
He has a degree in English with a concentration in creative writing and journalism from Auburn University. He also studied software engineering for two years. He has developed Web sites for over seven years and has focused mainly on WordPress for the majority of that time, releasing many popular plugins and themes along the way.
Most important, Justin’s passion is teaching, which carries over into his love of writing and development. He spent 14 months teaching English in South Korea but now spends his days teaching people how to use WordPress and build successful Web sites. Trust me, Join ThemeHybrid.com, you won’t regret it.
Ozh Richard
Ozh Richard started using WordPress in 2004, at version 1.0.1, published his first WordPress powered website in May 2004 and his first plugin in August 2004. Since, he has never stopped to watch WordPress grow and evolve till the most used CMS it is today. Visit his site: planetOzh
He has developed several popular WordPress plugins, won an Annual WordPress Plugin Competition and he’s now an official judge. He is known to share high quality WordPress tutorials and to maintain WordPress related tools that make the WordPress developer life easier.
Ozh’ areas of expertise are WordPress, PHP in general, and jQuery. When not coding WordPress plugins or playing Quake, Ozh develops YOURLS, a popular self hosted URL shortener that is, of course, free and open source.
Brad Williams
Brad Williams is the CEO and Co-Founder of WebDevStudios.com. He is also a co-host on the SitePoint Podcast and the co-author of Professional WordPress and Professional WordPress Plugin Development. He was one of the original co-hosts on the WordPress Weekly Podcast and still joins the show on occasion. Brad has developed websites for over 12 years, including the last 4 where he has focused on open-source technologies like WordPress. Visit his blog: StrangeWork.com
Brad has given presentations at various WordCamps across the country. He is also the organizer for the New Jersey WordPress Meetup and the Philadelphia WordPress Meetup. Brad also co-organized WordCamp Philly on October 30th, 2010. Brad founded Pluginize.com, a company dedicated to building custom WordPress plugins.
Brad is a computer programmer and tech junkie who enjoys exploring technology and sharing his knowledge and experience with others.