What: Backyard Beekeeping seminar. Dave Baues from Baues' Busy Bees will speak about the life of the beehive from spring through winter, including the life of the worker bees, drones and the queen. He'll explain the how-tos of beekeeping and talk about the current plight of the honeybee. The program is co-sponsored by the Glen Valley Garden Club. Where: Tredyffrin Public Library. Register by calling the library at 610-688-7092. When: 7 p.m. Tuesday, May 13.