Monty Python's Big Red Book

Monty Python's Big Red Book was one of the many volumes stored in the planet known as The Library. (DW: Silence in the Library)

Behind the Scenes

 * Monty Python alumnus John Cleese made a cameo appearance in City of Death. Cleese remains, to date, the only Python to appear in a Doctor Who story.
 * Minor Monty Python contributor Douglas Adams wrote or co-wrote several Doctor Who stories, including City of Death as well as serving as a Script Editor for the series.
 * The Torchwood episode Random Shoes features a character called Terry Jones, possibly a reference to the Monty Python member of the same name.