Timmerman, Charles Exercise your executive brain : 500 games, puzzles, and activities to get in mental shape on the job Charles Timmerman - New York McGraw-Hill c2011 - x, 354 p. : ill. ; 23 cm ISBN: 9780071752251 ISSN: 2010029962 Subjects--Topical Terms: Word games Dewey Class. No.: 793.734 TIM