Sherwin, David. Creative workshop : 80 challenges to sharpen your design skills / David Sherwin. - 1st ed. - Cincinnati, Ohio : HOW Books, c2010. - 231 p. : ill. (chiefly col.) ; 26 cm Includes index. ISBN: 9781600617973 (pbk. : alk. paper) 1600617972 (pbk. : alk. paper) LCCN: 2010022826 Nat. Bib. No.: GBB095976 bnb Nat. Bib. Agency Control No.: 015624278 Uk Subjects--Topical Terms: Creative ability--Problems, exercises, etc. LC Class. No.: BF408 / .S4486 2010 Dewey Class. No.: 153.3/5