"The Peripatetic Number Juggler" From Discover (Oct. 88) Photo by Cheryl Graham Photo by Peter Vidor

"The Eureka Moment - Ronald Graham" Science Digest (Jan. 85) "Circus Science" Discover (Feb. 96) By Che Graham

"Mental Gymnastics" The New York Times Magazine (Oct 6, 91)

Photo by Cheryl Graham

Buddy bike at NJ house Photo by Cheryl Graham

Big Rubiks cubes Photo by Glenn Tesler 2015

New iwatches 2019 Photo by Cheryl Graham