I enjoyed this book immensely. It's about a lot more than the value of checklists, though it is absolutely about that. It's a practical treatise, though, on recognizing our own limitations and fallibilities. Even (or especially) if we are highly trained, specialized professionals. It has a lot to say about skepticism as the foundation of science, and how difficult it can be to remember that. Gawande relates the challenges he's faced in getting medical professionals to accept the benefits of this practice, even in the face of research--there is such a tendency to cling to intuition and gut reaction, even in the face of growing evidence that questions it.