John Marino Books

The Buffy Sainte Marie Songbook

By Buffy Stainte Marie

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Frommer s Caribbean 2011

By Darwin Porter

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Frommer s Caribbean

By Christina Colo N

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Presents guidance and tools for visitors to the Caribbean, including trip planning information, lodging and dining suggestions for different budgets, and details on history, culture, and things to...

Frommer s Portable Puerto Rico

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Frommer s Puerto Rico Day by Day

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Frommer s Caribbean 2010

By Christina Colon

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Frommers Puerto Rico Day By Day

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Frommer s Caribbean 2011

By Danforth Prince, John Marino, Darwin Porter, Christina Paulette On, Alexis Lipsitz Flippin

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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.