Gonzalez Joaquin Jay III Books

Diaspora diplomacy

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"The remarkable and untapped soft power that international migrants possess and how various sectors-from governments, NGOs, business, and international organizations- could tap this valuable resour...

From Pancho to Pacquiao

By Gonzalez Joaquin Jay III

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A snapshot of more than a century of Philippine boxing, compiling biographies of outstanding Philippine-born and Filipino American boxers, from Francisco "Pancho Villa" Guilledo to Manny "People's...

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.