Christopher P. Andersen Books

"They would be called upon to lead a nation in one of its darkest hours - but were they up to the task? He had been the wild, hard-drinking scion of one of America's premier political families. She...

Barbra: The Way She Is

By Christopher Andersen

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Barack and Michelle: Portrait of an American Marriage

By Christopher P. Andersen

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One of America's bestselling pop-culture and current-events authors reveals the inside story of the First Couple, in this biography of the history-making family.

Barack and Michelle: Portrait of an American Marriage

By Christopher P. Andersen

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American Evita: Hillary Clinton's Path to Power

By Christopher P. Andersen

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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.