Her birthday was on the 13th. She lives in NYC.
She's better known for her many books on choosing colleges and careers.

https://www.linkedin.com/in/joyce-slayton-mitchell-89a29035

http://www.encyclopedia.com/article-1G2-3415700105/mitchell-joyce-slayton-1933.html
(career, awards, etc.)

https://hardwickgazette.com/author/joyce-mitchell/
(two articles she wrote in 2020)

https://backinthegame.hss.edu/story/joyce-slayton-mitchell/
(about her shoulder replacement)

http://www.google.com/search?hl=en&site=imghp&tbm=isch&source=hp&biw=877&bih=880&q=joyce+slayton+mitchell+books&oq=joyce+slayton+mitchell+books&gs_l=img.3...2255.2255.0.2649.1.1.0.0.0.0.108.108.0j1.1.0....0....1ac.2.24.img..1.0.0.bjT6pgXI5yw
(book covers)

https://www.kirkusreviews.com/author/joyce-slayton-mitchell/
(two Kirkus reviews)

https://www.goodreads.com/author/show/16230.Joyce_Slayton_Mitchell
(reader reviews)

https://www.publishersweekly.com/pw/authorpage/joyce-slayton-mitchell.html
(two PW reviews)

https://vimeo.com/651684365
(41:27 minute interview from 2021)

https://www.google.com/search?client=firefox-b-1-d&sca_esv=557881931&q=joyce+slayton+mitchell&tbm=vid&source=lnms&sa=X&ved=2ahUKEwiB-pi-1eSAAxWFlIkEHe9VCtAQ0pQJegQIChAB&biw=1293&bih=813&dpr=1
(more videos)

WRITINGS BY THE AUTHOR:

PICTURE BOOKS
My Mommy Makes Money, illustrated by True Kelly, Little, Brown (Boston, MA), 1984.
Tractor-Trailer Trucker: A Powerful Truck Book, illustrated by Steven Borns, Tricycle Press (Berkeley, CA), 2000.
Crashed, Smashed, and Mashed: A Trip to Junkyard Heaven, illustrated by Steven Borns, Tricycle Press (Berkeley, CA), 2001.
Knuckleboom Loaders Load Logs, illustrated by Steven Borns, Overlook Press (Woodstock, NY), 2003.

OTHER:

The Guide to College Life, Prentice-Hall (Englewood Cliffs, NJ), 1968.

The Guide to Canadian Universities, Simon & Schuster (New York, NY), 1970.
(Editor) Other Choices for Becoming a Woman: A Handbook to Help High School Women Make Decisions, Know, Inc. (Pittsburgh, PA), 1974, revised edition, Delacorte (New York, NY), 1975.
I Can Be Anything: Careers and Colleges for Young Women, College Entrance Examination Board (New York, NY), 1975, 3rd edition, 1982.
(Editor) Free to Choose: Decision Making for Young Men, Delacorte (New York, NY), 1976.
Tokenism: The Opiate of the Oppressed, Know, Inc. (Pittsburgh, PA), 1976.
Stopout!: Working Ways to Learn, Garrett Park Press (Garrett Park, MD), 1978.
The Work Book: A Guide to Skilled Jobs, Sterling Publishing (New York, NY), 1978.
The Classroom Teacher's Workbook for Career Education, Avon (New York, NY), 1979.
What's Where: The Official Guide to College Majors, Avon (New York, NY), 1979.
The Men's Career Book: Work and Life Planning for a New Age, Bantam (New York, NY), 1979.

See Me More Clearly: Career and Life Planning for Teens with Physical Disabilities, Harcourt (New York, NY), 1980.
Be a Mother and More: Career and Life Planning for Young Women, Bantam (New York, NY), 1980.
Taking on the World: Empowering Strategies for Parents of Children with Disabilities, Harcourt (New York, NY), 1982.
Choices and Changes: A Career Book for Men, College Entrance Examination Board (New York, NY), 1982.
Your Job in the Computer Age: The Complete Guide to the Computer Skills You Need to Get the Job You Want, Scribner (New York, NY), 1984.
College to Career: The Guide to Job Opportunities, College Entrance Examination Board (New York, NY), 1986, revised edition published as The College Board Guide to Jobs and Career Planning, College Entrance Examination Board (New York, NY), 1990, 2nd edition, 1994.
Making More Money: Fifty-five Special Job-Hunting Strategies for Retirees, Prentice Hall (Englewood Cliffs, NJ), 1986.
Winning the Chemo Battle, Norton (New York, NY), 1988.

The Best Guide to the Top Colleges: How to Get into the Ivy's or Nearly Ivy's, Garrett Park Press (Garrett Park, MD), 1991.
College Smarts: The Official Freshman Handbook, Garrett Park Press (Garrett Park, MD), 1991.
Mitchell Express: The Fast Track to the Top Colleges, Garrett Park Press (Garrett Park, MD), 1993.

(With daughter, Elizabeth Dix Mitchell) A Special Delivery: Mother-Daughter Letters from Afar, Equilibrium Press (Culver City, CA), 2000.
Winning the Heart of the College Admissions Dean: Experts Advice for Getting into College, Ten Speed Press (Berkeley, CA), 2001.