The purpose of this guide is to describe general procedures used by experienced aerial survey specialists to collect forest health data via sketchmapping. It is not intended to be a specific "how to" manual for all types of aerial surveys, nor replace training in aviation safety and management, on-the-ground field training, or apprenticeship flight time during regular aerial surveys. Rather, it is a "guide" to the aspects of flying and sketching that make up sketchmapping, presenting a comprehensive overview of aerial overview surveys and a general review of aerial survey sketchmapping methodology.