I bought this book to try and go back and possibly correct anything I overlooked whilst learning and teaching myself drums in the beginning.
It covers literally everything you would want to learn with your hands and help develop your technique.
It can be a little overly technical and might be off putting for someone who might be totally committed, but if you are serious about levelling up your hands, then this book is perfect. Its a MASSIVE book, so you will spend the better part of a year or two if you want to complete it, so be prepare to work once you get it.