Eric Peterson Books

Presents a guide to the national parks of the West, providing information about attractions, tours, day hikes, activities, wildlife, lodging, and restaurants in and near each park.

Frommer s easyguide to Colorado

By Eric Peterson

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With its extraordinary Rocky Mountains (America's best skiing) alongside expansive plains and desert of numerous national parks, landmarks and monuments, the fast-growing state of Colorado is a tou...

Secret Denver

By Eric Peterson, David Lewis

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Ramble

By Eric Peterson

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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.