Robert Urban Books

Medicine PreTest Self-Assessment and Review, Thirteenth Edition

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"The closest you can get to seeing the USMLE Step 2 CK without actually taking it. Medicine: PreTest Self-Assessment & Review is the perfect way to assess your knowledge of medicine/internal medic...

101 Awesome Things to Do with Your Child and Other Musings of a Divorced Dad

By Robert Urban

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Medicine PreTest Self-Assessment & Review, Twelfth Edition

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Medicine PreTest Self-Assessment and Review, Fourteenth Edition

By Roger D. Smalligan, Robert S. Urban, J. Rush Pierce

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Albert the Christmas Gorilla

By Robert Urban, Vlada Soshkina

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Medicine PreTest Self Assessment and Review Fourteenth Edition

By Roger Smalligan, Robert S. Urban, J. Rush Pierce

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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.