Peter Schweizer Books

From Chapter 1... The law dictates how much politicians can collect in campaign contributions, limits their ability to make money on the side, and requires the disclosure of those contributors. Ho...

Secret empires

By Peter Schweizer

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Reagan's War

By Peter Schweizer

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Reagan’s War is the story of Ronald Reagan’s personal and political journey as an anti-communist, from his early days as an actor to his years in the White House. Challenging popular misconceptions...

Extortion

By Peter Schweizer

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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.