Heidi Ellison Books

Frommer's Irreverent Guide: Paris

By Heidi Ellison

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Frommer's Irreverent Guide to Paris

By Heidi Ellison

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Paris

By Lisa Davidson

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Contains descriptions and background information on the attractions of Paris, including the Eiffel Tower, the Louvre, Notre-Dame cathedral, shopping venues, and many others, and includes maps, sugg...

National Geographic Traveler: Paris, 5th Edition

By National Geographic

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The National Geographic Traveler guidebooks are in tune with the growing trend toward experiential travel. Each book provides inspiring photography, insider tips, and expert advice for a more authe...

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.