ShiftShift Ethan Kross 'For anyone who has wondered whether they'll ever be in charge of their emotions, this book has the answer: yes' Angela Duckworth, author of Grit 'This book does much more than make sense of emotions it breaks new ground on how to manage them' Adam Grant, author of Think Again Whether its anxiety about the dentist, boiling rage when were stuck in traffic or devastation after a painful break up, our lives are filled with situations