Semra Mesulam Books

Let'S Go 1999; Turkey

By Semra Mesulam, Let'S Go, Inc., Harvard Student'S, St Martins Press, Janet Evanovich

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Today two Turkeys seem to exist--one urban and cosmopolitan, the other rustic and parochial. "Let's Go" offers reliable, up-to-the-minute information on both. Includes coverage of northern Cyprus a...

Berlin Map Guide

By Semra Mesulam, Cognoscenti, Cognoscenti, LLC

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Turkey 1999

By Semra Mesulam

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Red M&Ms Kill Children

By Kristoffer Garin, Semra Mesulam

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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.