I didn't find this book as helpful as I had hoped. The yarn used for the photographs made it very difficult to see the textures and patterns. All the socks appeared to be the same size with little useful advice on how to adapt the size to fit. I would have like to have seen more variety in the leg sections, being the part most people will notice in a sock. The book uses American sizes and terminology, although there is a conversion chart. Having said that, the instructions were very clear and easy to follow, and guided me through my first pair of socks. I went elsewhere for my second pair however.