47 books • 24 series
Pocket Book of Planet Earth (Kingfisher pocket books)
Volcanoes (Earth Science)
Glaciers (Earth Science)
Earth Science Library
Earth (DK Visual Dictionaries)
Simon and Schuster Young Readers' Book of Planet Earth
Nature (Junior Illustrated Encyclopaedia S.)
Warwick Illustrated Encyclopedia of Nature (Warwick Illustrated Encyclopedia)
Encyclopaedia of the Animal World
Oceanography (Science Frontiers)
Weather (Earth Science)
Deserts (Earth Science)
Wild Animals (Piccolo Books) (Spotter Guides)
Planet Earth (Earth Science)
Mountains (Earth Science)
Volcanoes and Earthquakes (Earth Science)
Glaciers and Ice Caps (Earth Science)
The Seashore (Kingfisher Fun-to-spot S.) (Piccolo Books) (Spotter Guides)
Nature Study (Piccolo Books) (A Kingfisher factbook)
How Things Work (Simple science)
Rivers and Lakes (Earth Science) (Franklin Watts picture atlas)
The Oceans (Earth Science) (Franklin Watts picture atlas)
Rocks and Fossils (Usborne Nature Trail) (Hobby Guides (Usborne Paperback)) (Hobby Guides (Usborne Hardcover))