Kay Melchisedech Olson Books

Biografía de Benjamín Franklin, gran inventor, estadista y diplomático estadounidense, así como uno de los padres fundadores de los Estados Unidos de América. En formato de novela gráfica.

Betsy Ross

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La biografía de Betsy Ross, la mujer que confeccionó la primera bandera de los Estados Unidos. En formato de novela gráfica.

Johann Gutenburg and the Printing Press Inventions and Discovery

By Kay Melchisedech Olson

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Benjamin Franklin Genio Norteamericano Benjamin Franklin

By Kay Olson

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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.