Mark Galer is a Senior Lecturer in photography at RMIT University, Melbourne, Australia. He has lectured in photography in the UK and Australia and has worked commercially as a freelance photographer on corporate and editorial assignments. He has written numerous top-selling photography books. He is an official Adobe Ambassador for Photoshop. Philip Andrews is Adobe Australia's official Photoshop and Elements Ambassador. He is an experienced photographer, author, magazine editor, and online course creator. He was previously a lecturer at the Queensland School of Printing and Graphic Arts, Australia and Nescot, England. He is a beta tester for Photoshop, an alpha tester for Photoshop Elements, and a Photoshop specialist demonstrator for Adobe Australia.

Philip is also co-founder of photo-college.com, an online photography training college. He's a regular contributor to several magazines including Shutterbug, Amateur Photographer, Australian Photography, and Better Photography, and is senior contributing editor for Better Digital, columnist for What Digital Camera, and co-editor and publisher of Better Photoshop Techniques magazine.