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Tuesday

Business Community Engagement Speaker Series; 7:30-8:30 a.m. Tuesday, The Club at Hancock Stadium, Illinois State University, Normal; speaker: Elizabeth Estes, chief idea officer, meraki.social.

Science and Technology Week keynote; 7 p.m. Tuesday, Prairie Room, Bone Student Center, Illinois State University, Normal; speaker: Roy Choi, chef and author.

Derik Nelson & Family concert; 7 p.m. Tuesday, Pontiac Township High School Auditorium; sponsor: Livingston County Concert Association; $20; or free with LCCA membership purchase or renewal, $50-$120.

Wednesday

Hobbyist Expo; 6-8 p.m. Wednesday, Bloomington Public Library.

WWI Film Series: “The Wipers Times”; 6:30 p.m. Wednesday, Normal Public Library.