BURLINGTON JAZZ FESTIVAL will feature five venues, 75 musicians, no cost for attendees. Learn more at btownjazzfest.com

FRIENDS OF THE LIBRARY Tri-Annual Book sale is 9 a.m.5 p.m. at Burlington Public Library, 210 Court St. Members get first pick. Memberships will be available.

DES MOINES COUNTY FAIR at the SCC Fairgrounds, West Burlington, will have food vendors and market open 10 a.m.-9 p.m. and much more. Bill Riley Talent Show and Old Timer’s Showmanship are 7 p.m.