From the White Book, Page 161:
"Use the literature of the program. The Twelve and Twelve and Alcoholics Anonymous were my first guides in working the Steps. Again and again I found what I needed in those original documents that launched the Twelve Step program. Many of us now find that working the principles outlined in our SA literature adds another dimension and is very helpful. Using it in the solitude and privacy of our own quiet times, we gain insights about ourselves and recovery in a way uniquely suited to who and where we are."