Here's a visual guide to the recommended materials for your lawn conversion/sheet mulch project. Most of these materials can be purchased in bulk from the vendors listed in the Marketplace.
Lawn Removal - Wild Ones Front Range Chapter
1. Prepare the Site
Sheet Mulching: Get Your Garden Ready for Spring
Sheet Mulch Catalog
Before & After Lawn to Garden
1. Prepare the Site
How To Sheet Mulch
Sheet mulching lawn height? : r/NoLawns
Training and Resources
Marketplace Lawn to Garden