The Tree Climber's Guide, 4th Edition

The Tree Climber's Guide 4th edition is the International Society of Arboriculture's study book for tree climbers, covering equipment, knots, climbing techniques and safe work practice. It is a standard reference for new climbers and for anyone preparing for the ISA Certified Tree Worker climber specialist credential.

What the book covers

This is a working climber's textbook. It walks through the gear that makes up a climbing system, the knots and hitches tree workers rely on, ways of getting into the tree, moving through the canopy, and positioning to work. It also covers safety on the job site, including aerial rescue, tool handling aloft and crew communication.

The fourth edition brings the content in line with how climbers work now, including the move toward single rope systems and mechanical devices alongside traditional moving rope techniques. Expect clear illustrations and plain explanations rather than a hard sell on any one method.

Crew leaders often use it as the backbone of a training plan: assign a chapter, then walk through the same knots, gear checks and climbing set-ups on the ground at the shop. Having one shared reference keeps the whole crew using the same terms for gear and commands, which matters when people are talking between the canopy and the ground.

Who should own a copy

New climbers get the most out of it, but it also earns a place in the truck for crew leaders who train people. It pairs well with hands-on instruction; no book replaces a qualified trainer and time in the tree. Browse other arborist books and training materials if you are building a study shelf.

If you are preparing for an ISA credential, check the current exam requirements with ISA so you study from the edition they reference.