The , written by Sharon Lilly, is the industry-standard technical manual for safe climbing and aerial tree work principles. This edition is primarily designed as a study resource for those pursuing the ISA Certified Tree Worker Climber Specialist and Aerial Lift Specialist exams. Key Updates in the 4th Edition

Let’s address the keyword directly. You are here for a . The number "39" in the search phrase appears to be a typographical variant of the possessive apostrophe (Climber’s) or a reference to page 39. However, the intent is clear: you want the digital file.

Designed as an educational tool, each chapter follows a structured learning format: