The 12 Step Store of Temecula is a book store that specializes in publications and periodicals to deal with addiction. It's called the 12 Step Store because it features books for use with 12 step programs. The shop has been operating in Temecula for seven years. It shares a building with Temecula Diesel and Auto Repair. Owner Andrea Bowers says she tells customers to take it one day at a time, no matter what program they're on.