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This book may contain very minor cosmetic defects, but it is in pristine condition. There should be no yellowing, no foxing, no water damage, and no annotations of any kind on the cover and the pages. For paperbacks, there should not be any crease marks on the spine. This book is good as new — lucky you!
*Books may be missing bundle media (e.g. CD, e-book code), if included.
This book has been used, but it is still in a clean condition. There should be no foxing or annotations of any kind on the inner pages, but a sparse amount may be present on the cover, title pages, or outside edges of the book. There should be no water damage of any kind. For paperbacks, there may be light crease marks on the spine.
*Books may be missing bundle media (e.g. CD, e-book code), if included.
We do our best to ensure the quality of our books, but there is no escaping the wear and tear that comes with time. Slight foxing and some annotations may be present on the pages and the cover. There should be no water damage of any kind. For paperbacks, there may be several crease marks on the spine.
*Books may be missing bundle media (e.g. CD, e-book code), if included.
This is a well-read book, which means that the previous owner probably really enjoyed it! The cover and pages may include moderate foxing and annotations, but the text is not obscured and still readable. Moderate cosmetic defects and minor water damage may be present on the edges of the book. For paperbacks, there may be multiple crease marks on the spine.
*Books may be missing bundle media (e.g. CD, e-book code), if included.
Find out more about our process here.
This is one of a series in which each book contains flaps and fold-outs, and is accompanied by a sheet of reusable stickers. Focusing on the nature of energy, this book looks at all its forms, and its sources, from coal and water to nuclear and non-polluting energies. It describes what the universe was like at the time of the Big Bang, the role of the sun in photosynthesis, and how windmills and watermills work. The book follows the first energy used by man, and takes readers through the technical evolution, the invention of the steam engine, the first light bulb, the discovery of nuclear energy, and the growing use of recyclable energies. Special effects include a transparent page which allows readers to enter a greenhouse and discover beautiful plants, vibrating photographs, and a feather to show static electricity.
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