I read a handful of books on creative thinking and management every year. Some are more helpful than others. The Accidental Creative by Todd Henry is one I found full of good advice from both perspectives. In a nutshell, Henry's focus is on practices that help us make the most of our creative resources (time and energy). It also has some good advice about managing a creative environment.
My review is below, along with some random notes (I post reviews of everything I read on my personal blog).
Additionally, Henry runs The Accidental Creative podcast. And he has a new book out, Die Empty. I haven't read that book. If anyone has, let me know what you think of it. The title's a little cheesy, but he usually has smart stuff to say.