BRAD WILLIAMS Brad Williams is the co-founder of WebDevStudios.com and AppPresser.com, a co-host on the DradCast podcast, and the coauthor of Professional WordPress and Professional WordPress Plugin Development. Brad has been developing websites for nearly twenty years, including the last eight where he has focused on open-source technologies like WordPress. Brad has given presentations at various WordCamps across the globe and is a co-organizer for the Philadelphia WordPress Meetup and WordCamp Philly. You can follow Brad online on his personal blog at http://strangework.com and on Twitter @williamsba.

DAVID DAMSTRA is Vice President of Marketing Services and Creative Director for CU*Answers where his team of developers empowers clients with WordPress. David manages a team of developers to create websites and web applications for the financial industry. His team uses WordPress as the foundation for many web projects. David is also a Zend Certified Engineer for PHP5. You can find David online professionally at http://ws.cuanswers.com, where he focuses on web technology and best practices for web development, especially pertaining to the credit union industry, and personally at http://mirmillo.com.

HAL STERN is a technology leader for a healthcare company and contributed to the first two editions of this book. He has been using WordPress for over a decade to power his personal rants at http://snowmanonfire.com about New Jersey, sports, and food. Hal's interest in WordPress internals grew out of diagnosing a content search problem with his own website.