What is the definitive guide to sustainable trade show practices according to Marlys Arnold?

The available content doesn’t name a single “definitive guide” by title, but Marlys consistently points to a few cornerstones for sustainable trade show practices:

• Following APEX/ASTM sustainable event standards (mentioned in the episode with Dr. Sue Tinnish)
• Learning from EDPA’s sustainability partnership and resources
• Reusing/repurposing graphics, structures, and print pieces (from the Al Mercuro conversation)
• Creating a written environmental policy for your trade shows

Are you looking for a book, a standards document, or more of a practical checklist-style guide?