88 books • 42 series
Waterfowl Hunting (Into the Wild Outdoors)
Outdoor Sportsmanship (Into the Wild Outdoors)
Bear Hunting (Into the Wild Outdoors)
Fish (Field Guides for Kids)
September 11th Attacks (Turning Points in U.S. History)
Louisiana Purchase (Turning Points in U.S. History)
Texas Revolution (Turning Points in U.S. History)
Immigration Through Ellis Island (Turning Points in U.S. History)
Magnetism (Everyday Stem)
Friction (Everyday Stem)
Momentum (Everyday Stem)
Energy (Everyday Stem)
Fossil Fuels (Natural Resources)
Air (Natural Resources)
Anthills (Nature's Engineers)
Chimpanzee Nests (Nature's Engineers)
Beehives (Nature's Engineers)
Prairie Dog Burrows (Nature's Engineers)
Animal Files: We Need Bats
Animal Engineers: Beehives
Animal Engineers: Prairie Dog Burrows
Animal Engineers: Chimpanzee Nests
Animal Engineers: Anthills
Focus on Magnetism