Mark Spencer is a freelance producer, editor, teacher and writer based in the Bay Area. His company Day Street Productions is a production and post studio focused on corporate video. He is an Apple-certified instructor for Final Cut Pro, DVD Studio Pro, and Motion, teaching for organizations such as BAVC, Stanford University, DVExpo, MacWorld, and consulting for corporations and individuals. He is the author of the Apple Pro Training Series book Motion Graphics and Visual Effects from Peachpit Press and has written for print and online publications. He maintains http://www.applemotion.net, a resource for Motion. Mark has an MBA from the Wharton School of the University of Pennsylvania.