Marty Epstein Sederman, M.B.A, M.S., came up with the idea of a "magic box" to help her sons, Casey and Derek, deal with how much they missed their father when he was away on frequent business trips. The idea worked so well that she decided to write a children�s book about it. Ms. Sederman holds an MBA from Harvard Business School as well as a M.S. in clinical psychology. She lives in New Jersey with her family and is a market research consultant.

Seymour Epstein, Ph.D., is Marty Sederman�s father. Dr. Epstein, professor emeritus of psychology at the University of Massachusetts, has a PhD in adult and child clinical psychology from the University of Wisconsin. He is published extensively in professional journals and is the author of several books including "Constructive Thinking: The Key To Emotional Intelligence."

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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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