For those learning safe tree climbing techniques, Jeff Jepson's The Tree Climber's Companion is a classic. A legal PDF edition is available for purchase here: 🔗 [Insert legitimate store link – e.g., Treetools, Bailey's, or the publisher's site]
For more information on tree climbing and arboriculture, check out the following resources: tree climbers companion pdf
Used for MRS (double rope) climbing. It is a self-tending hitch that slides up but grabs under weight. The PDF shows the classic "capsize" method to dress the hitch properly. For those learning safe tree climbing techniques, Jeff