On June 25, the Library of Congress will open its summer exhibit “Books That Shaped America.” The exhibit will be on display through the end of September in the Southwest Gallery, located on the second floor of the Thomas Jefferson Building in Washington, DC. Many books on the list of notable tomes won’t surprise you. And it certainly didn’t surprise us to see just how many of the 88 were challenged or banned books in their history, though it may surprise readers!

Twenty-six titles on the list were challenged or banned at some point in their history, according to the ALA’s annual Banned Books catalog. Here’s a run-down on some of those challenges: