Peter Beren Books

The writer's legal companion

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For most writers, negotiating the legal maze of publishing is as challenging as getting their words in print. This comprehensive guide offers writers solid advice on all aspects of publishing law....

Author Law and Stratgies

By Brad Bunnin, Peter Beren

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California the beautiful

By Galen Rowell

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Photographs of sunrise, sunset, and sand show California's natural beauty, coupled with quotations from more than fifty California writers, from John Muir to Maya Angelou.

The Golden Gate

By Morton Beebe, Peter Beren

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California the Beautiful

By Peter Beren, Galen Rowell

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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.