DeKALB – The Friends of NIU Libraries is sponsoring its annual book appraisal fair from 1:30 p.m. to 3 p.m. Sunday, April 22, in the Rare Books and Special Collections Department on the fourth floor of Northern Illinois University’s Founders Memorial Library.

Appraisals will be provided by Thomas Joyce of Thomas J. Joyce & Co. and the Chicago Rare Book Center, and by William Butts of Main Street Fine Books in Galena. Joyce previously has appeared on HGTV’s “Appraisal Fair” program. Butts, who has extensive experience with appraising ephemera and autographs, has appeared on PBS’s “History Detectives.”

Individual appraisals cost $10 per title. Members of Friends of NIU Libraries will receive their first three appraisals free of charge and subsequent appraisals at the discounted rate of $5 each. Visitors can sign up as new members that day to take advantage of the member rate for appraisals.