8 years + Covers an amazing array of subjects including science and technology, geology, the human body, geography, history, plants and animals and much, much more. Illustrated with stunning photographs, original art work, clear, easy-to-follow diagrams and colourful maps. Includes a world atlas, flags, a gazetteer, timelines, star charts and a detailed appendix of facts and lists. Over 180 internet links to recommended websites via the Usborne Quicklinks Website.