Having read a number of knot books, I was pleased to discover that this was one of the good ones. A lot of books don't have sufficiently clear instructions and photos/diagrams for the reader to learn the knots, making them rather useless. This book however did have good concise instructions and diagrams of how to tie the various knots. The book also includes practical information on rope strengths, knot and rope uses, how to pack ropes, all of which is very useful for putting the knots into practice. A few more photos of the knots could have improved the presentation of this book but overall a well put together, useful book for those wanting to learn climbing knots.