Join AARP Arizona?s Community Educators Program for a presentation and explanation of the different parts of Medicare. Workshops on Sept. 29, 1-3 pm at Main Library, 64 E. First St. and Oct. 6, 1-3 pm at Dobson Library, 2425 S. Dobson Rd. Open and free to the public. Call (480) 644-2207 for questions.