Sheri Williamson Books

A Field Guide to Hummingbirds of North America Peterson Field Guides R

By Sheri L. Williamson, Sheri Williamson

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A Field Guide to Hummingbirds of North America

By Sheri Williamson

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Attracting and feeding hummingbirds

By Sheri Williamson

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Birds of North America

By Sheri Williamson, Tom Wood

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" ... Filled with more than 200 spectacular color photographs, this accessible guide makes it easy to identify a variety of birds in the continental United States, as well as in parts of Canada and...

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.