A series of encyclopedias for young readers that fits nicely into a backpack or back pocket offers a unique catalog-style presentation that clearly lays out concise, punchy text covering all
the essential information pertaining to the featured subject. Includes a "fact file" in the reference section that contains a "top 10" list (biggest dinosaurs, fastest animals, etc.) and other
reference materials (such as the Moh scale of mineral hardness).