Home › Authors › Todd Kashdan 👤 Todd Kashdan 6 books Books by Todd Kashdan Arte de Llevar la Contraria Arte de Llevar la Contraria 2023 El arte de llevar la contraria 2022 Soyez négatif ! 2021 Power of Negative Emotion Power of Negative Emotion 2015 The Upside of Your Dark Side 2015 Mindfulness, Acceptance, and Positive Psychology 2013