Top bar hive beekeeper Les Crowder is doing a slideshow/talk about top bar hive beekeeping , on March 2, from 7-9 pm, at the Ecology Center
Bookstore in Berkeley Ca .

Les has been teaching top bar hive and sustainable beekeeping workshops in the Southwest for many years and is highly respected as a top bar hive expert.

The Ecology Center is located at 2530 San Pablo Ave (near Dwight)
Berkeley, CA 94702, and is open from Tuesday - Saturday, 11:00 a.m. -
6:00 p.m. (510) 548-3402

I don't have further info at the moment - usually the Ecology Center's evening lectures are free- check the March section of the website calendar in a few days for details
(there's nothing about this event at the calendar yet as they just
scheduled it last week)