Some Urbana residents are upset and calling for the library director's resignation after thousands of books were mistakenly removed from the shelves.
Director Debra Lissak says the removal at the Urbana Free Library was a "misstep" and some of the titles are being returned.
Workers removed art, gardening, computer science, medicine and cooking books from the stacks when they were culling the collection to remove volumes that were more than a decade old.
About half the library's 66,000 adult non-fiction books meet that threshold, but not every older book was removed because the process was halted.
The library's board president says books were taken off the shelves as the facility tries to make more space while preparing for a new security gate and self-checkout stations.