He was also a graphic designer.

Oddly, this was the only notice I could find.

https://www.forevermissed.com/richard-oliver-brightfield/about

*born in Baltimore, Maryland on September 28, 1927.
*died in Boynton Beach, Florida on August 2, 2020, aged 92.

https://www.youtube.com/watch?v=8AWa2KCxM-g
(this is a read-aloud, I take it - it's almost 100 minutes long!)
_______________________________________________

Most of what I posted in 2017:

He's also known for the "Choose Your Own Nightmare" series. Plus books he wrote from 1992-1993 on Indiana Jones.

https://en.wikipedia.org/wiki/Richard_Brightfield

Excerpt:

"He wrote a number of Choose Your Own Adventure books, and was the first author to establish himself within that series after its founders Edward Packard and R.A. Montgomery. Although he is probably best known among collectors of that series for his books on martial arts, his earliest works for that series had quite different subject matter, being focused on various scientific topics or fantasy."

http://www.fantasticfiction.co.uk/b/richard-brightfield/
(titles & covers)

https://www.google.com/search?biw=1266&bih=842&tbm=isch&sa=1&q=%22richard+brightfield%22&oq=%22richard+brightfield%22&gs_l=psy-ab.3..0i30k1.8183.8884.0.9135.2.2.0.0.0.0.179.341.0j2.2.0.dummy_maps_web_fallback...0...1..64.psy-ab..0.2.340....0.dIsmJwH4kN0#imgrc=_
(more covers)

https://www.goodreads.com/author/list/39815.Richard_Brightfield
(reader reviews)

WRITINGS:
YOUNG ADULT ADVENTURE BOOKS

The Phantom Submarine, Bantam, 1983.
Secret of the Pyramids, Bantam, 1983.
The Dragon's Den, Bantam, 1984.
The Curse of Batterslea Hall, Bantam, 1984.
The Secret Treasure of Tibet, Bantam, 1984.
The Castle of Doom, Tor Books, 1984.
Island of Fear, Tor Books, 1984.
Terror under the Earth, Tor Books, 1984.
The Dragonmaster, Tor Books, 1984.
The Deadly Shadow, Bantam, 1985.
Revenge of the Dragonmaster, Tor Books, 1985.
Battle of the Dragons, Tor Books, 1986.
Trapped in the Sea Kingdom, Bantam, 1986.
Terror on Kabran, Bantam, 1986.
Star System Tenopia, Bantam, 1986.
The Forest of the King, Bantam, 1987.
The Caverns of Mornas, Bantam, 1987.
The Battle of Astar, Bantam, 1987.
Invaders of the Planet Earth, Bantam, 1987.
Hyperspace, Bantam, 1987.
Escape, Bantam, 1987.
Planet of the Dragons, Bantam, 1988.
Hurricane!, Bantam, 1988.
Master of Kung-Fu, Bantam, 1989.
Murder Comes to Life, Troll, 1989.
The Gruesome Guests, Troll, 1989.
China: Why Was an Army Made of Clay?, McGraw-Hill, 1989.
U.S.A.: What Is the Great American Invention?, McGraw-Hill, 1989.
Master of Tae Kwon Do, Bantam, 1990.
Hijacked, Bantam, 1990.
Master of Karate, Bantam, 1990.
African Safari: British East Africa, September 1909, Bantam Books, 1993.
Behind the Great Wall: Peking, March 1910, Bantam Books, 1993.
Master of Judo, illustrated by Frank Bolle, Bantam Books, 1994.
Master of Aikido, illustrated by Frank Bolle, Bantam Books (New York, NY), 1995.
Island of Doom, illustrated by Bill Schmidt, Gareth Stevens, 1996.
Master of Kendo, illustrated by Eric Cherry, Bantam Books (New York, NY), 1997.
Something's in the Woods, illustrated by Bill Schmidt, Gareth Stevens, 1997..
How I Became a Freak, illustrated by Bill Schmidt, Bantam Books (New York, NY), 1997.

UNDER NAME RICK BRIGHTFIELD

(With wife, Glory Brightfield) Amazing Mazes, Harper, 1973.
(With G. Brightfield) Outer Space Mazes, Harper, 1973.
Brightfield Mazes I, Barnes & Noble, 1974.
(With G. Brightfield) More Amazing Mazes, Harper, 1975.
Brightfield Mazes II, Barnes & Noble, 1975.
(With G. Brightfield and Mary Orser) Instant Astrology, Harper, 1976.
(With G. Brightfield) Amazing Circle Mazes, Harper, 1976.
(With G. Brightfield and Orser) Predicting with Astrology, Harper, 1977.
(With G. Brightfield and Orser) What's My Sign?, Harper, 1978.