The Apocryphal Books of the Bible
Wikipedia has a great list of
old and new testament apocryphal literature.
New Testament apocrypha — books similar to those in the New Testament but rejected by Catholics, Orthodox and Protestants — include several gospels and lives of apostles. Some of them were clearly produced by Gnostic authors or members of other groups later defined as heterodox. Many were discovered in the 19th and 20th centuries, and produced lively speculation about the state of affairs in early Christianity.
The New Testament apocryphal book that is most famous today is the Gospel of Thomas, the only complete text of which was found in Nag Hammadi along with other works, most of which were New Testament apocrypha. The entry on Gnosticism lists more recovered texts considered to be of Gnostic origin.
