When? Where? What? Why? This stimulating and comprehensive encyclopedia for children provides answers to all the questions kids love to ask. Each chapter is jam-packed with maps, charts, timelines, diagrams, beautiful images and amazing facts. Did you know, for example, that a single drop of blood contains around five million blood cells? Or that there are areas of desert in all seven of Earth's continents? Prepare to build your knowledge on a wide range of topics - including Earth and beyond, plants and animals, history and politics, science, technology, and the human body - arranged thematically with more than 9,000 indexed entries and 2,500 colourful images. Cross-reference icons encourage children to explore and discover linked information, feeding their curiosity and building their general knowledge. The New Children's Encyclopedia, which has sold almost 500,000 copies worldwide since 2009, has now been fully updated in line with the latest knowledge and research. Developed, written, and checked by experts this is the must-have reference book for every child's library.