Library theft

Theft from libraries is the crime of stealing books, DVDs or other media from libraries. It is typically prevented by installing electronic article surveillance alarms at the doors. Library materials are tagged and if the tag is not deactivated it sounds an alarm. In some libraries with older or rare materials, readers are not allowed to take coats or bags into the reading area except for a few items in a clear plastic bag.

One study commissioned in the UK estimated the average loss rate of libraries to theft at 5.3%.

In the U.S. state of Pennsylvania, the third conviction for library theft is a felony, regardless of the value of material.

Library thieves, who may be staff or regular visitors of the library, risk being discovered if a book is found in the library catalog but missing from the shelves. To avoid this, some library thieves have been careful to also steal the catalog card describing the book.

In public libraries, librarians have noticed common themes in what subjects are most frequently stolen. Books with topics like sex and witchcraft are popular with thieves, as are guides for General Educational Development testing.

In a poll taken in 1996, the top three books that went missing were: The Joy of Sex, GED Examination Books, and the Prophecies of Nostradamus.

Rare books departments of libraries especially fall target to professional thieves. In 1996, two rare early Mormon manuscripts were stolen from the Public Library of Cincinnati and Hamilton County, when the thief requested the manuscript and replaced it with a facsimile.

In 2006, a map stolen from the British Library by American antiquarian map dealer Edward Forbes Smiley III was recovered from a dealership in Rickmansworth, Hertfordshire. Smiley stole maps from a number of libraries: the Federal Bureau of Investigations said that he admitted to stealing 97 maps, but it is estimated that he stole more than that. Smiley's thefts were discovered by a librarian at Yale University who found a razor blade left in the library.

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Wikipedia