Brock David Books

Once a leading attacker of the Clintons, David is now the progressive movement's defender and truth-teller. In this personal account, Brock disarms the far-reaching tentacles of the Republican Levi...

The Benghazi hoax

By Brock David

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Aftersales Management

By Brock David

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Aftersales management

By Brock David

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The Republican noise machine

By David Brock, Brock David

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"In The Republican Noise Machine, David Brock documents perhaps the most important but least understood political development of the last thirty years: how the Republican Right has won political po...

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.