Sunday, June 5

Heads Talks are billed as a “portable psychedelic symposium” during which participants can discuss mind-expanding topics in an “immersive and relaxed salon-like atmosphere.” The one tonight at SPACE Gallery (538 Congress St., Portland) features Maine writers Buzz Poole (author of a new 33 1/3 book about Workingman’s Dead) and ex-Jerry Garcia/Grateful Dead manager Richard Loren (High Notes: A Rock Memoir), with event organizer Jesse Jarnow (A Biography of Psychedelic America). Starts at 7:30 p.m. Free and all-ages. 828-5600. space538.org.