Ellen Anon, Ph.D. (Erie, PA) is an Apple Certified Trainer in Aperture. She has been a freelance photographer for more than a decade, leading and co-leading a variety of Photoshop workshops and seminars on her own as well as with renowned photographers such as Arthur Morris and Joe and Mary Ann McDonald. Her images have been in many gallery shows and are in collections on several continents, as well as being used in calendars, books, and more. Ellen has written extensively on digital photography, including magazine features, book chapters, and coauthoring "Photoshop for Nature Photographers" with Tim Grey (Sybex, 2005).Josh Anon (Moraga, CA) has been a nature photographer for 10 years. His… work is represented by EcoStock in Seattle and has appeared in a variety of media. Josh is a technical director at Pixar Animation Studios, where he works on cinematography and has contributed to Mac and Linux development and rendering and model optimization. When not he's photographing in locations from the Great Barrier Reef to Chicago's Michigan Avenue, he teaches photography classes and also writes software for Lightbox Software.