How do I determine which community of practice to join? KB Admin, ATD Updated September 02, 2017 15:00 Follow Choose your communities based on your interests and job scope in the talent development field. When choosing your communities, keep your career path and goals in mind. Related articles I’m interested in writing an article, blog, or book. Whom should I contact? How much does it cost to join a community in addition to the ones that come with my membership?