Alejandro Shesena Books

Pinturas mayas en cuevas

By Alejandro Shesena

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Religion maya

By Alejandro Shesena

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Palenque

By Ana Maria Parrilla Albuerne, Roberto Lopez Bravo, Alejandro Shesena

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Who were the people that left these monuments of their civilization? Since when did they live there? What grand event made them disappear without leaving after them any trace other than those ruins...

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.