"I use this book in advanced motivation coursework with doctoral students. Previously, I used the first edition by Heinz Heckhausen. I am pleased with the additional strengths this text brings to the field, updating the original and expanding into new areas of research on motivation and action. The book provokes student thinking, challenges mainstream conceptions of motivation, and expands the motivational episode to include deliberate study of volitional dynamics in realized action. I recommend this book and think that readers will find it an excellent opportunity to re-examine and expand their assumptions about motivational dynamics."---Mary McCaslin, Professor of Educational Psychology, university of Arizona