17 books • 5 series
Going Vegan (Food Rebellion)
Going Organic (Food Rebellion)
Sports Nutrition for Teen Athletes (Speed Training for Teen Athletes)
Going Vegetarian (Food Rebellion)
Alternative Energy (Green Generation)
Life (Earth Matters)
Space and Time (Earth Matters)
Land (Earth Matters)
Maps (Earth Matters)
Oceans (Earth Matters)
Air (Earth Matters)
Artic Adventure
George Lucas, Creator of "Star Wars" (Book Report Biographies)
Christmas
New Year's Day
Chanukah
Undersea City