Dr. Christiane Northrup Books

THE NEW YORK TIMES BESTSELLER!Though we talk about wanting to "age gracefully," the truth is that when it comes to getting older, we’re programmed to dread an inevitable decline: in...

The Secret Pleasures of Menopause

By Dr. Christiane Northrup

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A groundbreaking book on finding pleasure and sexual satisfaction during menopause—from a New York Times–bestselling author and board-certified OB-GYN   Christiane Northrup, M.D.,...

The Secret Pleasures of Menopause Playbook

By Dr. Christiane Northrup

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From the New York Times bestselling author of Women's Bodies, Women's WisdomThe Secret Pleasures of Menopause Playbook picks up where The Secret Pleasures of Menopause left off. In this companion v...

Mother Daughter Wisdom

By Dr. Christiane Northrup

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From the best-selling author of Women's Bodies, Women's Wisdom and The Wisdom of MenopauseWith such groundbreaking bestsellers as Women’s Bodies, Women’s Wisdom and The Wisdom of Menopa...

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.