69 books • 28 series
It's Raining Frogs! (Wildly Weird Weather)
Where Do Stars Come From? (Mysteries of Space)
Will an Asteroid Destroy Earth? (Mysteries of Space)
The Life of Red Jacket (Heroes of Native American History)
What's Space Tourism? (What's the Issue?)
Minerals Under the Microscope (The Inside Guide: The Microscopic World)
Who Are Environmental Activists? (What's the Issue?)
What Happens During an Eclipse? (Mysteries of Space)
What's the Truth about Ufos? (Mysteries of Space)
Do Other Earths Exist? (Mysteries of Space)
Tsunamis (Rosen Verified: Natural Disasters)
Monster Madness (Monster Madness)
Skunks in the Forest (Forest Creatures)
Foxes in the Forest (Forest Creatures)
The Story of the Loch Ness Monster (Monster Madness)
The Story of Zombies (Monster Madness)
The Story of Bigfoot (Monster Madness)
Mauritania
What's Renewable Energy? (What's the Issue?)
What's Mental Health? (What's the Issue?)
What Are Voting Rights? (What's the Issue?)
Botswana (Cultures of the World (Third Edition)(R))
The Salem Witch Trials (Turning Points)
The Trail of Tears (Turning Points)