If this book is for pros, then it shouldn't spend so much time on the basics. But I'm not a pro, so I read that basic stuff several times through. But since I'm not a pro, I also needed this book to be thorough and systematic. It definitely was not. I'm renovating my house, and so am re-hanging about 15 old doors onto new jambs. This is a topic never addressed specifically, but I would have imagined the process to be fairly similar to other jobs. But, to get the process figured out, I had to go back/forth through many chapters to figure out what to do. Difficult topics were mixed indiscriminately with basic topics, and many key pieces were glossed over. The biggest frustration, though, is probably something so simple the "pro" might not even think about. That thin strip of wood that goes around the door jamb to stop the door from swinging past the "closed" position. Well, there is NO mention of these things anywhere in the book. Anywhere, except one diagram where an arrow points to it and labels it a "door stop". There's also never a mention about what size nails are appropriate for building the jamb, for attaching the jamb to the framing, etc. Are long crown staples or finish nails enough? Or should I use framing nails? We amateurs need a decent book that tells us these things. This book helped a lot with a few things, but left me very frustrated with a few more.