Tales of a Librarian (complete title: A Tori Amos Collection: Tales of a Librarian) is the first greatest hits compilation album by singer/songwriter Tori Amos. Released in 2003 on her former label Atlantic Records, Amos recorded it under the premise that a librarian is a "chronicler", piecing together the album and adding two new songs and two re-recorded b-sides: "Angels", "Snow Cherries from France", "Sweet Dreams", and "Mary", respectively (the latter two compositions were originally recorded in 1990 during sessions for Little Earthquakes). Most of the album tracks have been remastered to preserve the original vision Amos had when they were mixed by others for release. Amos bypassed some of her more familiar hits such as "Pretty Good Year" and "Hey Jupiter" in favor of lesser-known songs such as "Way Down" and "Mr. Zebra", and also included the Armand van Helden remix of "Professional Widow" rather than the studio original.

The songs are arranged in accordance with the Dewey Decimal System, extending the librarian theme of the album. The album also features elaborate packaging, including a bonus DVD including a photo library and three live songs ("Honey", "Pretty Good Year", and "Northern Lad") recorded at the sound check of the final show on the "On Scarlet's Walk Tour" in September 2003 (the full concert was issued as Welcome to Sunny Florida).