Concise Encyclopedia focuses on the more than 200 different 21st-century Anabaptist groups in North America that trace their roots, inspiration, and/or affiliations back to the Anabaptist Movement in Europe during the 16th-century Protestant Reformation. The 340 short entries provide a succinct overview of the history, religious beliefs, and cultural practices of these groups, which are found in 17 North American countries. A summary of the findings, a Q-and-A with the author, and other supporting documents are available on the Concise Encyclopedia page of the Young Center website.