- Seymour Simon's extreme oceans, Seymour Simon
- Amazing aircraft, Seymour Simon
- Earthquakes, Seymour Simon
- The moon, Seymour Simon
- Insects
- Strange mysteries from around the world, Seymour Simon
- Wolves, Seymour Simon
- Amazing bats, Seymour Simon
- Winter across America, Seymour Simon
- Destination: moon, Seymour Simon
- Planets around the sun, Seymour Simon
- Snakes, by Seymour Simon
- Insects, Seymour Simon
- Simon, Seymour, Einstein Anderson, bk. 5
- How to talk to your computer
- Bones, our skeletal system, Seymour Simon
- The sun, Seymour Simon
- Mountains, Seymour Simon
- Dogs, Seymour Simon
- Animals nobody loves, Seymour Simon
- Seymour Simon's book of trains, Seymour Simon
- Killer whales, Seymour Simon
- Deserts, Seymour Simon
- Our solar system, Seymour Simon
- Earth words, a dictionary of the environment, Seymour Simon ; illustrated by Mark Kaplan
- Gorillas, Seymour Simons
- Guts, Seymour Simon
- Spiders, Seymour Simon
- Frogs, Seymour Simon
- Fighting fires, Seymour Simon
- Knights and castles, Seymour Simon
- Giant snakes, Seymour Simon
- Wildfires, Seymour Simon
- The heart, our circulatory system, Seymour Simon
- The gigantic ants & other cases, Seymour Simon
- Simon, Seymour, Einstein Anderson, bk. 4
- Wild babies, Seymour Simon
- Lightning, Seymour Simon
- The invisible man and other cases, by Seymour Simon ; illustrated by S.D. Schindler
- Simon, Seymour, Einstein Anderson, science detective, #7
- Icebergs and glaciers, Seymour Simon
- Our solar system, Seymour Simon
- Super storms, Seymour Simon
- Spiders, Seymour Simon
- Emergency vehicles, Seymour Simon
- Big cats, Seymour Simon
- Dolphins, Seymour Simon
- Cats, Seymour Simon
- They walk the earth, the extraordinary travels of animals on land, by Seymour Simon ; illustrated by Elsa Warnick
- Danger! volcanoes, Seymour Simon