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Katrin Eismann and Seán Duggan have broad traditional and digital photographic knowledge based on rigorous education, professional and personal assignments, and extensive teaching experience. Both authors are successful educators who know how to explain the complex clearly and effectively, allowing their students and readers to spend more time with their own images and less time deciphering obtuse or irrelevant information. Both enjoy a respected profile in the professional photography community and are popular speakers, workshop leaders, and feature article writers. Please visit and for complete resumes and to review their teaching and speaking schedules.

Katrin Eismann

Katrin Eismann is an internationally recognized artist, author, and educator who has been working with digital imaging tools since 1989. She is the author of the award-winning books Photoshop Restoration & Retouching and Photoshop Masking & Compositing. Katrin's extensive teaching and speaking engagements address the latest tools and techniques of digital imaging and the impact they are having upon professional photographers, artists, and educators. She has taught and presented in Europe, Asia, South America, and throughout North America.

Katrin studied photography and electronic still imaging at the Rochester Institute of Technology. Upon graduating at the top of her class in 1991, she had the good fortune to become the first intern at the Kodak Center of Creative Imaging in Camden, Maine. Three years later she was the Director of Education and had implemented a rigorous curriculum that focused on imaging, design, and multimedia. In 2002 she received her MFA degree in Design from the School of Visual Arts in NYC. In 2005, Katrin was inducted into the Photoshop Hall of Fame and she is presently the co-founder and chair of the MPS in Digital Photography program at the School of Visual Arts in New York City.

Seán Duggan

Seán Duggan is a photographer and digital artist who combines a traditional fine art photographic background with extensive real world experience in the field of digital imaging. In addition to co-authoring Real World Digital Photography, he is a co-author of Photoshop CS2 Artistry, Mastering the Digital Image, and an Adobe Certified Photoshop Expert. His Photoshop tutorial column can be seen regularly in Layers magazine, and he also writes articles on Photoshop and digital imaging for Digital Photo Pro and Outdoor Photographer magazines.

In an imaging career spanning more than twenty years, he has been a studio and location photographer, supervised the digital imaging department of a professional photo lab, and worked as a custom black & white darkroom printer. Equally at home with both low-tech and hi-tech approaches, his visual tool kit includes everything from pinhole cameras to 35mm and medium-format film SLRs, digital cameras, and advanced digital imaging techniques. His photographs have been exhibited at the Monterey Peninsula Museum of Art, the Center for Photographic Art in Carmel, California, and at galleries and exhibitions throughout California.

He is an instructor in the photography departments of the Academy of Art University in San Francisco and the University of California, Santa Cruz Extension in Silicon Valley, where he teaches regular classes on Digital Photography and Digital Imaging for Photographers. Seán provides Photoshop and imaging consulting services for photographers and companies and also teaches custom Photoshop and digital photography workshops at his studio in the foothills of California's Sierra Nevada mountains. Sean’s web site can be seen at, and he posts regularly to his photoblog at