Book excerpt: Religion was once the primary way to understand human behavior. This was certainly true when the book Alcoholics Anonymous was written in 1939. But, we have learned much over the past 80 years. Common Sense Recovery began as the journal of a long-standing member of AA during a time in his life when he was struggling to reconcile the religious language of Alcoholics Anonymous with his new-found atheism and scientific understanding of addiction and the recovery process. The short chapters articulate a non-religious, practical understanding of the fundamental principles at work in the program, and examine the 12 Steps from a secular perspective. Now in its third edition, this work continues to be a valuable guide for many who struggle with the religious nature and language of AA and contains important insights for the future of the fellowship.