Iconography is the branch of art history which studies the identification, description, and the interpretation of the content of images: the subjects depicted, the particular compositions and details used to do so, and other elements that are distinct from artistic style. The word iconography comes from the Greek εἰκών ("image") and γράφειν ("to write"). A secondary meaning (based on a non-standard translation of the Greek and Russian equivalent terms) is the production of religious images, called icons, in the Byzantine and Orthodox Christian tradition; that is covered at Icon. In art history, "an iconography" may also mean a particular depiction of a subject in terms of the content of the image, such as the number of figures used, their placing and gestures. The term is also used in many academic fields other than art history, for example semiotics and media studies, and in general usage, for the content of images, the typical depiction in images of a subject, and related senses. Sometimes distinctions have been made between Iconology and Iconography, although the definitions, and so the distinction made, varies.

John the Evangelist (יוחנן Standard Hebrew Yoḥanan, Tiberian Hebrew Yôḥānān meaning "Yahweh is gracious", Greek: Εὐαγγελιστής Ἰωάννης) (c. AD 1 - c. 100)^{[citation needed][dubious – discuss]} is the conventional name for the author of the Gospel of John. Traditionally he has been identified with the author of the other Johannine works in the New Testament – the three Epistles of John and the Book of Revelation, written by a John of Patmos – as well as with John the Apostle and the Beloved Disciple mentioned in the Gospel of John. However, at least some of these connections have been debated since about 200.

The Gospel of John refers to an unnamed "Beloved Disciple" of Jesus who bore witness to the gospel's message. The composer of the Gospel of John seemed interested in maintaining the internal anonymity of the author's identity.

The apostle John was a historical figure, one of the "pillars" of the Jerusalem church after Jesus' death. Some scholars believe that John was martyred along with his brother (Acts 12:1-2), although many other scholars doubt this. Harris believes that the tradition that John lived to old age in Ephesus developed in the late 2nd century, although the tradition does appear in the last chapter of the gospel. By the late 2nd century, the tradition was held by most Christians.

Max Richter (born 1966) is a German-born British composer.

Richter studied composition and piano at University of Edinburgh, the Royal Academy of Music and with Luciano Berio in Florence. After finishing his studies, Richter co-founded the contemporary classical ensemble Piano Circus. He stayed with the group for ten years, commissioning and performing works by Arvo Pärt, Brian Eno, Philip Glass, Julia Wolfe and Steve Reich. The ensemble was signed to Decca/Argo, producing five albums.

In 1996, Max collaborated with Future Sound of London on their album Dead Cities, beginning as a pianist, but ultimately working on several tracks, as well as co-writing one track (titled "Max"). Richter subsequently worked with the band over a period of two years, also contributing to the albums The Isness and The Peppermint Tree and Seeds of Superconsciousness. In 2000, Richter worked with Mercury Prize winner Roni Size on the Reprazent album In the Mode. Richter produced Vashti Bunyan's 2005 album Lookaftering and Kelli Ali's 2008 album Rocking Horse.

Keep of Kalessin is an extreme metal band from Trondheim, Norway formed in 1993. The group's early lineup consisted of Ghash on vocals, Obsidian C. (the group founder) on guitars and keyboards, Warach on bass, and Vyl on drums. They released two albums under this lineup: Through Times of War in 1997, and Agnen: A Journey Through the Dark in 1999, before splitting up. Obsidian C. then toured with Satyricon, but revived the Keep of Kalessin name for a 2003 EP, Reclaim. In 2006 he reconstituted the group with a new lineup and released a third full-length, Armada). They toured with Behemoth and Dimmu Borgir early in 2008. Their fourth album Kolossus was released on June 6, 2008. They take their name from Ursula K. Le Guin's Earthsea series of books, where Kalessin is the name of the arch-dragon who is the bearer of the Earthsea world. Keep of Kalessin was nominated for a Spellemannprisen in the metal category in 2008.