KATRIN EISMANN is an artist, teacher, and chair of the Masters in Digital Photography department at the School of Visual Arts. She wrote Photoshop Restoration & Retouching and Photoshop Masking & Compositing, and is co-author of The Creative Digital Darkroom. www.katrineismann.com.
SEÁN DUGGAN is a fine art photographer, educator, and co-author of The Creative Digital Darkroom and other books. He teaches online imaging classes for photographers at the Academy of Art University and leads digital photography workshops at venues across the country. www.seanduggan.com.
TIM GREY has written over a dozen books and hundreds of magazine articles on digital photography and imaging, and speaks at events, workshops, and seminars around the world. He also publishes the Digital Darkroom Quarterly and the Ask Tim Grey newsletters. www.timgrey.com.