This book was invaluable to us as novices to the waterways. Clear easily understandable maps. It's not like you can get lost on a canal - is it? Well there are times when you would wonder and this book stopped us taking the wrong turn more than once. Spiral binding makes it easy to change page and easy to stay on the same page. We only used a tenth (if that) of the book for our journey, so for serious or serial waterway goers this book would represent good value. If we ever went on a canal boat again, I would definitely get the equivalent guide for the region I was going to. The pages do not like getting wet, an idea could be to photocopy and laminate relevant pages before you leave.