What are the benefits to joining an ATD community of practice? KB Admin, ATD Updated October 14, 2016 19:23 Follow By joining a community of practice, you will have a more personal experience with ATD, and content and offerings will be easily accessible. We are constantly working to refine our communications with you based on your community selections. Related articles What resources do the communities of practice have? What are ATD's vision and mission? Do I have to be an ATD member to join a community of practice? I’m interested in writing an article, blog, or book. Whom should I contact? Whom Do We Serve?