Glade B. Curtis Books

Su Embarazo Semana a Semana

By Judith Schuler, Glade B. Curtis

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Your pregnancy week by week

By Glade B. Curtis

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"Please file under Pregnancy. With millions of copies sold worldwide, Your Pregnancy Week by Week is the established go-to resource for expectant parents time and time again. The book's trademark w...

Your pregnancy week by week

By Glade B. Curtis

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Your Pregnancy Week by Week Miniature Edition

By Judith Schuler, Glade B. Curtis

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Your Pregnancy Week by Week Lib E

By Judith Schuler M.S., Robin Miles, Dr Glade B Curtis M.D.

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Su embarazo semana a semana

By Glade B. Curtis

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Your pregnancy week-by-week

By Glade B. Curtis

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Your pregnancy questions & answers

By Glade B. Curtis

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Your pregnancy after 30

By Glade B. Curtis

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Your Pregnancy

By Glade B. Curtis M.D. OB GYN, Glade B. Curtis

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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.