Description & Features of National Geographic Footprint Series: Welcome to the sights and sounds of the world with the Footprint Reading Library, a unique new series of graded readers for learners of English. This series offers fascinating stories from the four corners of our world, and develops the language and skills needed to understand non-fiction writing. * A rich selection of engaging non-fiction readers, grouped into five themes: Incredible Animals, Fascinating Places, Remarkable People, Exciting Activities, and Amazing Science. * One hundred individual readers, graded at eight levels from pre-intermediate to advanced, covering 800 to 3,000 headwords. * Each reader is available with a DVD-ROM containing both video and audio content for that reader. * Carefully-controlled grammar syllabus covers the most typically-taught structures in coursebooks. The Three Rivers of Zambia: Zambia, Africa, is nowhere near an ocean, but it is heavily influenced by water. Three great rivers flow through Zambia which impact the lives of the people and animals near them. How do the rivers impact life around them? How can humans protect these valuable rivers?