If you are a swimmer (or, perhaps, even a coach) looking for some fresh swimming drills, and you seem to have exhausted even the immensely vast repertoire of YouTube, you'll most definitely find something interesting in The 100 Best Swimming Drills. There are some basic drills in the book that will be familiar to everyone, but there are also some that I haven't seen anywhere yet. The text itself is easy to follow, and the descriptions are transparent; doing the exercises should be simple enough even without a DVD. Happy swimming!