Reference guide for experienced climbers who want to further hone their skills. Has newspaper comic-style characters as well as photos to show off the various techniques. Expresses a lot of information succinctly, it doesn’t waste your time.

A bunch of mistakes climbers (apparently) make and how to avoid them. Not as concrete and concise as I would like but if you’re willing to filter out the fluff, there’s some interesting information here.

A climber’s guide to movement, training and performance.