Sinek, Simon, Find your why : a practical guide to discovering purpose for you or your team / Simon Sinek with David Mead and Peter Docker. - xii, 242 pages : illustrations ; 24 cm ISBN: 9780143111726 (pbk.) LCCN: 2017019047 Subjects--Topical Terms: Attitude (Psychology)Optimism.Conduct of life. LC Class. No.: BF327 / .S56 F2017