The guide is published by the and was notably updated by author Sharon Lilly . It is widely recognized as the definitive study material for the ISA Certified Tree Worker (CTW) and Certified Arborist exams.
If you are still using a scanned copy of the 3rd edition, you are missing out. Here are the key updates: tree climbers 39- guide 4th edition pdf
Why don't they sell a PDF? Security. The industry fears that a freely circulating PDF would be immediately outdated (since standards change every 3-5 years) and could be edited to remove safety warnings. The guide is published by the and was
The Tree Climbers 39 Guide, 4th Edition PDF is not just an update—it’s a rethink. The climbing world has moved away from static double-lanyard techniques toward more dynamic, SRT-based systems, and this guide finally catches up. Here are the key updates: Why don't they sell a PDF
The Tree Climbers' Guide is a comprehensive manual designed to serve as a primary textbook for students of arboriculture and a reference for practicing tree care professionals. The 4th Edition significantly updates previous versions to reflect modern safety standards and climbing techniques.
: Physical copies can be found at retailers like WesSpur and American Arborist Supplies .