Carlos Valles Books

Agent 47 Vol. 1: Birth Of The Hitman

By Jonathan Lau, Carlos Valles, Ariel Medel, Christopher Sebela, Thomas Napolitano

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"47 and his handler, Diana Burnwood, are a team responsible for some of the most ruthless, efficient and untraceable assassinations across the globe. But before they were operatives of the shadowy...

Happy New Century

By Carlos Valles

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Yo Soy Asi ... Es Posible Cambiar

By Carlos Gonzalez Valles

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Unencumbered By Baggage: An Intimate Biography Of Anthony De Mello

By Anthony DE Mello, Carlos Valles

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Mastering Sadhana.

By Carlos Valles

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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.