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- Get a job making stuff to sell, Ryan Jacobson ; illustrated by Jon Cannell
- Exciting entertainment inventions, Ryan Jacobson
- Marvelous medical inventions, by Ryan Jacobson
- Step-by-step experiments with light and vision, by Ryan Jacobson ; illustrated by Bob Ostrom
- How do wind turbines work?, by Ryan Jacobson ; illustrated by Glen Mullaly
- How do lasers work?, by Ryan Jacobson ; illustrated by Glen Mullaly
- How do telescopes, binoculars, and microscopes work?, by Ryan Jacobson ; illustrated by Glen Mullaly
- Jacobson, Ryan, You're in business!