David Sibley Books

Sibley The Birders Year 2011 Wall Calendar Calendar

By David Sibley

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The North American Bird Guide 2nd Edition

By David Sibley Undifferentiated

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Sibley Birds of Land, Sea, and Sky

By David Allen Sibley

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Birdwatchers everywhere will love this beautiful box of 50 postcards featuring original bird paintings by renowned ornithologist David Sibley. This brand new vertical format offers 50 postcards of...

Sibley Backyard Birds Matching Game

By David Allen Sibley

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Featuring beautiful watercolor bird illustrations from leading ornithologist David Sibley, this 40-piece matching game for children ages 3+ is sure to charm both kids and parent...

The Birder s Year 2004 Calendar

By David Sibley

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The Birder s Year 2004 Postcard Calendar

By David Sibley, Ronnie Sellers Productions

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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.