Topher Donahue Books

Rock climbing

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"Thousands of rock climbers have learned the sport using Craig Luebben's bestselling text, 'Rock climbing: Mastering Basic Skills'. Now, in this new and updated edition, fellow climber Topher Donah...

Rock Climbing 2nd Edition

By Craig Luebben, Topher Donahue

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Advanced Rock Climbing

By Topher Donahue

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Rock Climbing Anchors

By Craig Luebben, Topher Donahue

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Bugaboo dreams

By Topher Donahue

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Designed By Adventure 30 Years Of Outdoor Research

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Advanced Rock Climbing

By Topher Donahue

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“The old way of climbing was systematic, methodical, and consistent. Now it’s anything goes, reacting to every situation differently.” —Tommy Caldwell • For skilled climbers who want to push to the...

Boulder Canyon Rock Climbs

By Bob D Antonio, Topher Donahue

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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.