7 easy steps to boosting your everyday genius Gelb, Michael creator text London HarperCollins Publishers 2009 monographic xviii, 318 p. : ill. 23 cm(pbk) by Michael Gelb Includes bibliographical references da Vinci Leonardo Creative thinking Creative thinking Problems, exercises, etc 153.35 9780007341696 B-408106-129 Aakar Books 20100807143128.0