David Block Books

Kim Possible is a teenage girl who can do anything, including stopping evil supervillains. During the day she is your average teen and goes to high school with her friend and sidekick Ron Stoppable...

Mission culture on the upper Amazon

By Block David

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Until recently, historians of the Christian missions in the New World have seen missionaries either as saints and martyrs or as brutal disrupters and oppressors. Both the apologists and detractors...

Baseball before We Knew It

By David Block

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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.