Big and full of information! I love how before I got this book I had a mindset of how I wanted to train my dog, and on to reading-barely making in 30 pages I found that my ideas may not be the best. For example to practice weave polls, not the best idea to have to "guide" your dog through them, you need to send it in the right direction so you can run to the next obstacle because the dog doesn't need to be waiting on you. It gives you a guide to how to do it and which side you should always start your dog on and only go through 4 polls in the beginning, practice the entry point and then the next weave. My book came brand new and now it does not look like it with all the highlighting and writing in the margins. But this is a great book, it gave me a lot of information and something that I will be hanging on to for awhile.