The Empty Library, a Memorial in memory of the burning of books by Micha Ullman consisting of a glass plate set into the cobblestones, gives a view of a group of empty bookcases large enough to hold all 20,000 burned books; its purpose is to commemorate the book burning. Furthermore, a line of Heinrich Heine from his play, Almansor (1821), is engraved on a plaque inset in the square: "Das war ein Vorspiel nur, dort wo man Bücher verbrennt, verbrennt man am Ende auch Menschen."
The Empty Library is a memorial honoring the burning of books by Micha Ullman. It features a glass plate embedded in cobblestones showing an empty bookcase capable of holding all 20,000 burned books and includes a quote from Heinrich Heine's play Almansor (1821) engraved on a plaque: "This was merely a prelude; where they burn books, they will ultimately burn people as well."