This is a really great guide to book-making--not the artsy-fartsy kind but the technical kind. I got this book from the library to help me with a project for class and I learned a lot while following the directions for Project 2 (single section hard-backed). For one thing, it turns out that I apparently learned a lot of shortcuts when I learned how to make books many years ago--and I have a feeling a lot of those shortcuts probably are the reason why I've always found coptic binding so difficult and finicky. My book is currently setting under a pile of books and a 5 pound container of flour, but I'll find out tomorrow morning if Abbott's instructions yield better results (I have an optimistic feeling that they will).
Most of the instructions are text-based but there are illustrative photos throughout. If you're starting from zero knowledge about bookbinding I imagine this book might be frustrating to use. I did have to refer to other materials I have for things like sewing but overall thought the directions were easy to follow (I read them a few times and then went over them as I completed each step). When it comes to making things, I'm a very visual person and found that it took me a few passes before I could adequately "see" what I was supposed to be doing based on the textual instructions.
This book also really goes all-out with the equipment. If you're not a professional bookbinder, be prepared to make some adjustments. Again, if you're approaching this as a total beginner, the supply lists may look pretty daunting. There are plenty of alternatives, however, and I appreciate the use of technical terminology/professional equipment as it helps solidify those terms in my mind, thus making me all the more fluent in the language of bookbinding (and if that doesn't sound pretentious, I don't know what does).
ETA: My project was a total success :) Loving this book.