Jane Valentine Barker Books

Trappers and Traders Colorado Heritage Ser.

By Jane Valentine Barker

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Magic Mystery and Monsters

By Sybil Downing, Jane Valentine Barker

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Building Up

By Jane Valentine Barker

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Historic Homes of Boulder County

By Jane Valentine Barker

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Mari

By Jane Valentine Barker

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Mari is the story of the turbulent relationship between famed Western author Mari Sandoz and her pioneer-rancher father, Jules Sandoz. Set in the Sandhills of northwest Nebraska in the early 1900s,...

Martha Maxwell, pioneer naturalist

By Jane Valentine Barker

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Traces the life of the Colorado naturalist, Martha Maxwell.

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.