Norbert Kox was born in Green Bay, Wisconsin in 1945. While a member of the Outlaws biker gang, Kox began working on custom bikes and cars, soon progressing to painting on other items, creating artworks from rubbish or salvaged objects. Leaving the biker gang was an emotional struggle, which Kox only achieved through immersing himself in religion. Kox soon found that he disbelieved the conventional teachings of Christianity, preferring his own interpretations. He joined the United States Army and, with the help of art instruction books, began painting. Between 1975 and 1985, Kox went through a period of religious isolation, living as a hermit in the wilderness of his personal outdoor chapel known as "Gospel Road". On his return to Green Bay, he continued to work on his apocalyptic, spiritual paintings.
Kox's pictures are religious visions of the battle between good and evil, detailing spiritual scripts and examining the worship of various false icons. He organised his compositions with pencil then employed a complex layering technique, depositing layers of vivid oils and watercolors. The final glazing of his paintings, combined with the strongly contrasted hues he used, endowed each of these works with brilliant and translucent qualities.
- Raw Vision No. 14, 1996.
- Raw Vision No. 65, 2008.
- Religious Visionaries, John Michael Kohler Arts Center, 1991.
- The End is Near!: Visions of Apocalypse, Millennium and Utopia. American Visionary Art Museum, 1998.
- "Gillett's 'apocalyptic' artist, Norbert Kox, has died". Press Gazette Media.
- Weisenburger, Erik. "Norbert H Kox". Raw Vision. Retrieved 31 October 2013.
- Girardot, Prof.Norman J. "Norbert Kox". Outsider Art. Retrieved 31 October 2013.
- Damkoehler, David. "Masquerade: Norbert Kox". Raw Vision. Retrieved 31 October 2013.
- Maizels, John; et al. (March 10, 2009). Outsider Art Sourcebook. UK: Raw Vision. p. 106. ISBN 9780954339326.