David Keller Books

Great Disasters

By David Keller

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The Long Island Railroad 1925 1975 Images of Rail

By Steven Lynch, David Keller

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Revisiting the Long Island Rail Road 1925 1975 Images of Rail

By Steven Lynch, David Keller

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Breakthroughs in Technical Analysis

By David Keller

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"Breakthroughs in Technical Analysis explains the new trading methods used by the world's top technicians, encompassing in one volume the investing approaches of ten proven practitioners. More impo...

Trouble in history

By David Keller

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Mito de Frankenstein El

By David Keller

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El Mito del Hombre Lobo

By David Keller

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Land That Wasn t Ours

By David Keller

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Tales from Underwood

By David Keller

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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.