David Jacobs Books

The Complete Idiot's Guide to the FBI

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Chaplin, the Movies, and Charlie

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A biography of one of the most famous film comedians of the twentieth century who contributed greatly to the art of filmmaking both as a performer and as a director.

Chaplin, the Movies, and Charlie

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An American conscience : Woodrow Wilson's search for world peace

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Constantinople: City on the Golden Horn

By Cyril Alexander Mango, David Jacobs

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Master Builders of the Middle Ages,

By David Jacobs

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Master Builders of the Middle Ages

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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.