Jacob Gube is a massive MooTools developer. He is the Founder and Chief Editor of Six Revisions, a website dedicated to web developers and web designers. He's also written for other popular web publications such as Read Write Web and Smashing Magazine discussing web technologies and development. A web professional for 8 years, Jacob is an in-house web developer specializing in distance-learning education and web accessibility, using PHP, MooTools, and jQuery to get the job done. Garrick Cheung is a designer-developer and a member of the official Mootools Community team. He's currently a Senior Technical Producer for CBS Interactive developing for sites such as GameSpot.com, TV.com and MP3.com. He's passionate about code optimization and loves to teach and develop in MooTools. Garrick also writes about code and development at his site, http://www.garrickcheung.com.