Third annual Children's Resale Expo to benefit Hemophilia Alliance of Maine, 8 a.m.-1 p.m. at Oakfield Community Center.

Book sale at the Caribou Public Library, downstairs in the Caribou Room, 10 a.m.-2 p.m. Hardbacks $1, paperbacks 50 cents, children's books 25 cents. Donations happily accepted until May 3.

Beginner Microsoft Word class at Caribou Public Library, class 2 of 3, 2-5 p.m. Registration required. Visit the library or its Facebook page or call to register.