French, Nigel Adobe photoshop unmasked : the art and science of selections, layers, and paths / Nigel French - Bekerly, CA : Peachpit, 2007 - vii, 254 p. : ill. (chiefy col.) ; 24 cm. "Adobe Press Book"--T.p Verso Includes index ISBN: 0321441206 (pbk.) 9780321441201 (pbk.) Subjects--Uniform Titles: Adobe photoshop Subjects--Topical Terms: Computer graphics