999 books • 156 series
Grace Hansen loves writing nonfiction books for children. When she is not writing, Hansen likes spending time outside, listening to mystery podcasts, and baking. She lives in Minnesota with her husband and Scottish terrier Louie.
Soils (Geology Rocks!)
Fossils (Geology Rocks!)
Gems (Geology Rocks!)
Menas / Ores (!super Geologia! (Geology Rocks!)) (!super Geologia!)
Minerales (Minerals) (!super Geologia! (Geology Rocks!))
Piedras Preciosas (Gems) (!super Geologia! (Geology Rocks!))
Rocas (Rocks) (Spanish Version) (!super Geologia! (Geology Rocks!))
¡Súper Geología! (Geology Rocks!) (Spanish Version) (Set) (!super Geologia! (Geology Rocks!))
Tierra (Soil) (Spanish Version) (!super Geologia! (Geology Rocks!))
Fósiles (Fossils) (Spanish Version) (!super Geologia! (Geology Rocks!))
Animal Friends (Set) (Animal Friends)
Geology Rocks! Set 1 (Set) (Geology Rocks!)
Biografias de Los Presidentes de Los Estados Unidos (Biografias de los Presidentes de los Estados Unidos)
Insectos (Insectos)
World Records to Wow You! (Seeing Is Believing)
Science Facts to Surprise You! (Seeing Is Believing)
Weird Animals to Shock You! (Seeing Is Believing)
Tropical Fish (Ocean Life)
Dolphins (Ocean Life)
Jellyfish (Ocean Life)
Octopuses (Ocean Life)
Seahorses (Ocean Life)
Machines to Thrill You! (Seeing Is Believing)
Places to Amaze You! (Seeing Is Believing)