There is a DOES specific discount for the “People Before Tech: The Importance of Psychological Safety and Teamwork in the Digital Age” book that came out last week which features a Foreword by Prof Dr Amy Edmondson and an interview with Gene Kim! For 25% off People Before Tech, use the discount code DOES2021  at http://www.bloomsbury.com/peoplebeforetech but you can get it off Amazon and some brick&mortar shops as well.