There will be a Zoom presentation by William Schaberg, renowned author and A.A. historian on how the idea for the Big Book came about and the history of how it was written. The Zoom presentation will be available for private viewing at 12:00 PM (noon CST) and there will be a group Zoom showing at St. Louis Central Services. There will be additional presentations at Central Services along with Archives displays and light refreshments. The event begins at noon (CST) and ends at 5:30 PM.