Doug Baldwin Books

Cobalt

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A pictorial history of the silver mining at Cobalt, Ontario, was given. From the discovery of silver in 1903 and the rush of prospectors, to the establishment of mines and hydroelectric power, pi...

Play Mandolin Today The Ultimate Selfteaching Method A Complete Guide To The Basics

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Play Mandolin Today! DVD: The Ultimate Self-Teaching Method!

By Doug Baldwin

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(DVD). This DVD can be used as a supplement to the Play Mandolin Today! Level 1 book, or alone as a great introduction to the mandolin. Simply follow along with the songs in the booklet as you wa...

Confusion Caused by Being Your Own Twin

By Doug Baldwin

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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.