One of the country’s top regional antiquarian fairs, up to 40 dealers from 12 states offer manuscripts, vintage photos and prints, antique maps, children’s books, and a wide array of old, rare, curious, and fine books. Admission charge benefits the U-M Clements Library. 11 a.m.–5 p.m., Michigan Union Ballroom. $5 donation. (734) 995–1891, annarborbookfair.com.