Drive: The Surprising Truth About What Motivates Us

A very good overview of key theories about creativity and motivation, engagingly written.
My only real beef is that a significant section of the book is ‘filler' with suggestions for applying the book's lessons to the worlds of work and education - I didn't find these to be particularly insightful and a bit shallow in places.
But the substantial first two thirds of the book are very good and I've been recommending it to lots of colleagues as it addresses many of the issues that keep coming up in our teaching.