Robert J. Blake Books

On a snowy Christmas eve in the late 1800s, Frances and her family wait and worry when beloved Uncle Ambrose, who has a crippled leg, does not come home as expected.

Togo

By Robert J. Blake

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Based on the true story of the heroic dogs who saved countless lives in Alaska in 1925, this classic tale is a thrilling adventure and a history lesson all in one.Togo wasn't meant to be a sled dog...

Akiak

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Dog

By Robert Blake

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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.