Gary Reinl Books

Iced
Iced

By Gary R. Reinl

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Get Stronger Feel Younger
Get Stronger, Feel Younger
Get Stronger, Feel Younger

By Gary Reinl, Wayne Westcott PhD

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As women age, their metabolisms slow, and over a 20-year period, the average woman packs on about 30 pounds of fat. So, in order to lose weight, women turn to diet plans that not only restrict calo...

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If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

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