Caspar W. Weinberger Books

Fighting for Peace: 7 Critical Years in the Pentagon

By Caspar W. Weinberger, Caspar Weinberger

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Fighting for Peace: Seven Critical Years in the Pentagon

By Caspar W. Weinberger, Caspar Weinberger

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Fighting for peace

By Caspar W. Weinberger

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Chain of command

By Caspar W. Weinberger

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Chain of command

By Caspar W. Weinberger

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Secret Service agent Mike Delaney goes up against a ruthless hidden enemy with the cold-blooded will to assassinate the president of the United States--and frame Delaney for the murder.

Home of the brave

By Caspar W. Weinberger

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Home of the Brave

By Caspar W. Weinberger, Wynton C. Hall

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Chain of command

By Caspar W. Weinberger

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Ethics and American Power

By Ernest W. Lefever

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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.