Jeffrey L. Gould Books

Billboard 1992 the Year in Music. Special Double Issue

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Eighteen scholarly essays on the role that mestizos played in the development of 20th century political culture, with general focus on the region and specific sections on Guatemala, Honduras, El Sa...

Desencuentros y desafios

By Jeffrey L. Gould

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El mito de la Nicaragua mestiza y la resistencia indigena, 1880-1980

By Jeffrey L. Gould

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History of Nicaragua's indigenous population, with focus on Matalgalpa and Jinotega, revising the accepted historical interpretation that the coffee economy of the 19th century signalled the destru...

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.