Laurie Tarkan Books

Dr. Robert Greene's Perfect Hormone Balance for Pregnancy: A Groundbreaking Plan for Having a Healthy Baby and Feeling Great

By Laurie Tarkan, Robert A. Greene MD, Robert A. Greene

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Perfect Hormone Balance for Fertility

By Laurie Tarkan, Robert A. Greene MD, Robert A. Greene

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FOR THE ONE IN FIVE COUPLES WHO EXPERIENCE DIFFICULTY CONCEIVINGYou have more than one hundred hormones circulating in your body–reproductive hormones, pregnancy hormones, sex hormones, metabolic h...

Electromagnetic fields

By Laurie Tarkan

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My Mother s Breast

By Laurie Tarkan

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My Mother s Breast

By Laurie Tarkan

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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.