This book is really well done. I have only used it for Joe's Valley and Little Cottonwood Canyon, and it was easy to use. Future guide book authors should take note of the format. The descriptions are great, they include how to get there but also include a description of the start holds which is very handy for reassuring yourself you are on the right problem. All the boulders are drawn with very few pictures which would seem like a negative but the attention to detail is amazing. Spatially the boulders are oriented perfectly and all the necessary aretes and corners are drawn in to help you find the boulder you are looking for. Great job, well done.