An award-winning science writer offers clear explanations of what is known about sleep, and what is still a mystery, in this volume that provides young readers with a new understanding of the one-third of their lives they spend asleep. Illustrations.
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An award-winning science writer offers clear explanations of what is known about sleep, and what is still a mystery, in this volume that provides young readers with a new understanding of the one-third of their lives they spend asleep. Illustrations.
Read Less
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Seller's Description:
Good. . All orders guaranteed and ship within 24 hours. Your purchase supports More Than Words, a nonprofit job training program for youth, empowering youth to take charge of their lives by taking charge of a business.
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Seller's Description:
Very good. A copy that has been read, but remains in excellent condition. Pages are intact and are not marred by notes or highlighting, but may contain a neat previous owner name. The spine remains undamaged. An ex-library book and may have standard library stamps and/or stickers. At ThriftBooks, our motto is: Read More, Spend Less.
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Seller's Description:
Very good. Connecting readers with great books since 1972! Used books may not include companion materials, and may have some shelf wear or limited writing. We ship orders daily and Customer Service is our top priority!
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Seller's Description:
Very Good. Prompt shipment, with tracking. we ship in CLEAN SECURE boxes Mysteries & The Supernatural (Children's/YA): Very Good Hardcover with Slightly Creased Dust Jacket, Clean Pages, Prompt Shipping with tracking.
