Those books that the Chicago Sun-Times recommended reading this summer? You can stop looking for them. The newspaper said Tuesday that several of the titles had been generated by AI and don’t actually exist.

On Sunday, the Chicago Sun-Times published a special section titled "Heat Index: Your Guide to the Best of Summer" in both its print and e-paper editions. Among the features was a summer reading list sourced from a nationally-recognized content partner, later identified as King Features, a unit of Hearst.

The special section inserted into the Sunday Chicago Sun-Times featured fun summer activities, including a list of 15 books, most of which do not exist.