The Penn State Extension Arborist Short Course Series is a ten-day webinar series designed to increase working tree knowledge and prepare participants for the ISA Certified Arborist exam.   The online short course begins on January 9, 2024 and runs through February 9, 2024.  All lectures will be recorded and participants will be provided access to the recordings and downloadable resources/references on all covered topics.  Registrants will receive a code to purchase the ISA Certification Study Guide at a 15% discounted rate.   For more information visit