Andrew Princz Books

Frommer s Eastern Europe Frommer s Complete

By Mark Baker, Karen Torme Olson, Sanja Bazulic Olson, Andrew Princz, Heather Coombs, Keith Bain, Pippa De Bruyn, Angela Charlton, Hana Mastrini

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Frommer s Budapest the Best of Hungary Frommer s Complete

By Anna Kutor, Andrew Princz, Carolyn Byynfalvi, Nyyra Lakos

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Frommer s Europe Frommer s Complete

By Anna Kutor, Danforth Prince, Sherry Marker, George McDonald, Andrew Princz, Darwin Porter, Carolyn B Aacute Nfalvy, Suzanne Rowan Kelleher, N Oacute Ra Lakos, Hana Mastrini

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Frommer s Europe by Rail Frommer s Complete

By Naomi P. Kraus, Danforth Prince, George McDonald, Andrew Princz, Darwin Porter, Theodora Tongas, Lesley Logan, Sascha Segan, Hana Mastrini

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Bridging the divide

By Andrew Princz

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Whether you're a first-time visitor doing the grand tour or a seasoned traveler planning a multi-country itinerary, Frommer's Europe is a must. Inside this concise, user-friendly volume are all the...

Frommer s Budapest the Best of Hungary

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Frommer s Europe by Rail

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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.