David Livingstone Smith will read from his book “Less Than Human: Why We Demean, Enslave and Exterminate Others.” The event is part of the Portland Public Library’s Brown Bag Lecture Series, so people are invited to bring their lunch.

WHEN: Noon to 1 p.m. Wednesday

WHERE: Portland Public Library, 5 Monument Square

HOW MUCH: Free

INFO: Portlandlibrary.com; 871-1700