Stephen K. Patrick Books

Obstetrics and Gynecology: PreTest Self-Assessment And Review, Eleventh Edition

By Stephen K. Patrick, Karen M. Schneider

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Over 500 USMLE-style questions and answers referenced to core textbooks and journal articles. Complete explanations discuss right and wrong answer options. All questions are reviewed by students wh...

Obstetrics And Gynecology PreTest Self-Assessment And Review, 14th Edition

By Stephen K. Patrick, Karen M. Schneider, Shireen Madani Sims

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Publisher's Note: Products purchased from Third Party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product.PreTest®P...

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.