Zak Greant

Zak Greant is lead developer for 51 Degrees North and is the founder of the Foo & Associates programmer's cooperative. He leads the PHP Quality Assurance Team and (when not writing) is an active contributor to the PHP documentation, mailing lists, and source code.

Chris Newman

Chris Newman is a consultant programmer specializing in database development with an Internet twist. He has extensive commercial experience of using PHP to integrate various database systems and has produced a wide range of applications for an international client base. He runs Lightwood Consultancy Ltd, the company he founded in 1999 to further his interest in online database development. Newman has served as a technical editor on several books from Sams, including PHP and MySQL Web Development, Teach Yourself PHP, MySQL & Apache All in One, and Red Hat Linux Unleashed.