Cover of Science by Lisa Trumbauer

Science

Lisa Trumbauer
Cover of Rise of the Thinking Machines by Jennifer Fretland VanVoorst

Rise of the Thinking Machines

Jennifer Fretland VanVoorst
Cover of Working by Jenny Fretland VanVoorst

Working

Jenny Fretland VanVoorst
Cover of Macmillan/McGraw-Hill Math by David Bauer

Macmillan/McGraw-Hill Math

David Bauer
Cover of Yellow Umbrella by Lisa Trumbauer

Yellow Umbrella

Lisa Trumbauer
Cover of Rocks and Minerals by Rebecca E./ Swanson Hirsch (Jennifer/ Owings, Lisa/ VanVoorst, Jenny Fretland)

Rocks and Minerals

Rebecca E./ Swanson Hirsch (Jennifer/ Owings, Lisa/ VanVoorst, Jenny Fretland)
Cover of The Byzantine Empire by Jennifer Fretland VanVoorst

The Byzantine Empire

Jennifer Fretland VanVoorst
Cover of Animals in Spring by Jennifer Fretland VanVoorst

Animals in Spring

Jennifer Fretland VanVoorst
Cover of Make It Move! by Jennifer VanVoorst

Make It Move!

Jennifer VanVoorst
Cover of The Ancient Maya by Jennifer Fretland VanVoorst

The Ancient Maya

Jennifer Fretland VanVoorst
Cover of Birds in Spring by Jennifer Fretland VanVoorst

Birds in Spring

Jennifer Fretland VanVoorst
Cover of Weather in Spring by Jennifer Fretland VanVoorst

Weather in Spring

Jennifer Fretland VanVoorst
Cover of Gardens in Spring by Jennifer Fretland VanVoorst

Gardens in Spring

Jennifer Fretland VanVoorst
Cover of Trees in Spring by Jennifer Fretland VanVoorst

Trees in Spring

Jennifer Fretland VanVoorst
Cover of Making Shapes by Jennifer VanVoorst

Making Shapes

Jennifer VanVoorst