About the Author
Veteran author Katrin Eisman has written numerous photography books, including the previous edition of this guide and Photoshop Restoration & Retouching. Sean Duggan, co-author of Photoshop Artistry, is a photographer and digital artist who is also an instructor for the photography department of the Academy of Art College in San Francisco. He writes a regular Photoshop tutorial column for MacDesign magazine. Tim Grey is a digital imaging instructor who has written for magazines, including Outdoor Photographer and PC Photo. He is also the editor of the quarterly publication The Digital Image.