Simon Sinek Find Your Why: a practical guide to discovering purpose for you or your team/ Simon Sinek. - London: Penguin Books, 2017 - xii, 242 pages: illustrations (black and white); 24 cm ISBN: 9780241279267 Subjects--Topical Terms: Leadership.Success in business.Teams in the workplace. Dewey Class. No.: 658.4092 SIN 2017