Valerie Harms Books

The National Audubon Society almanac of the environment

By Valerie Harms

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UC Rodale nat aud enviro

By Valerie Harms

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Tryin to Get to You

By Valerie Harms

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Trying to Get to You

By Valerie Harms

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A biography of Elvis Presley, whose musical style, forged from gospel songs, black blues, and country ballads, altered the course of contemporary music.

Stars in my sky

By Valerie Harms

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Biographical sketches of three prominent women whose innovative approaches to education and literature have had far reaching consequences.

The inner lover

By Valerie Harms

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The Inner Lover

By Valerie Harms

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Frolic's dance

By Valerie Harms

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A snowshoe hare, hunted by lynx and other predators, discovers courage and friendship in an attempt to help a young moose calf in trouble.

El Amante Interior

By Valerie Harms

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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.