Joe Leigh Simpson Books

Disorders of sexual differentiation: Etiology and clinical delineation

By Joe Leigh Simpson

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Obstetrics

By Jennifer R. Niebyl, Steven G. Gabbe, Joe Leigh Simpson

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Pocket Companion to Accompany Obstetrics

By Jennifer R. Niebyl, Steven G. Gabbe, Joe Leigh Simpson

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Obstetrics Normal and Problem Pregnancies

By Laura Goetzl, Mark Landon, Henry Galan, Jennifer R. Niebyl, Steven G. Gabbe, Joe Leigh Simpson, Eric R. M. Jauniaux

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This new edition includes significant and extensive changes throughout to provide current information. New chapters are included, surgical chapters have been combined (with the exception of cesarea...

Obstetrics

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Obstetrics: Normal and problem pregnancies

By Joe Leigh Simpson, Jennifer R. Niebyl, Steven G. Gabbe

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Essentials of Prenatal Diagnosis

By Joe Leigh Simpson MD, Sherman Elias MD

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Study Guide for Obstetrics

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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.