All invited to join a discussion, led by local poet & Western Michigan University environmental studies professor Alison Swan, of Dave Dempsey’s recently updated book about how the Great Lakes are in danger of becoming privately exploited to supply the drought-stricken West with fresh water. 6:30 p.m., 124 E. Washington. Tickets $5 (can be redeemed for store credit) in advance only at literatibookstore.com. (734) 585–5567.