Geo Espinosa Books

500 treatments for 100 ailments

By Christine Gustafson, Stephanie Caley, Zhuoling Ren, Geo Espinosa, Beth MacEoin

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All-in-one guide puts everything you need to know about traditional and alternative medicine right at your fingertips. Its authors are leading practitioners in five differetn fields -- conventional...

Thrive don t only survive

By Geo Espinosa

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A holistic perspective on how to deal with prostate cancer.

How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

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.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.