The authors of more than twenty science books for children, the Silversteins here clearly and concisely present a fascinating, but intricate, subject to middle-school-aged youngsters. In this case, they describe how DNA works, how a human cell forms, what happens when "the code" goes wrong, and related topics. This book makes "students aware of an important and exciting field of research and its possible impact on all our lives" — Library Journal.

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ThriftBooks is a fully independent seller of used books, having sold more than 160 million used and new books since we started in 2003. Each quality used book is sorted, graded, shelved and shipped by hand by our team of dedicated employees in our seven warehouses across the US. We have the best selection of books, in the right condition and format, at everyday low prices. We also have a dedicated, US-based Customer Service team, ranked in the top three by Newsweek for Best Customer Service in 2018 and 2019, so you can shop with confidence. We support and invest in our employees, appreciate and value our customers, and truly believe in the power of the written word to educate, energize, and engage readers of all ages and interests.

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Thrift Books Global LLC
18300 Cascade Ave S, Seattle, WA, 98188, U.S.A.

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All domestic Standard shipments are distributed from our warehouses by OSM, then handed off to the USPS for final delivery.

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Shipping rates within U.S.A.
Order quantity	4 to 8 business days	4 to 8 business days
First item	US$ 0.00	US$ 0.00

Delivery times are set by sellers and vary by carrier and location. Orders passing through Customs may face delays and buyers are responsible for any associated duties or fees. Sellers may contact you regarding additional charges to cover any increased costs to ship your items.