Sylvester Allred Books

Principles of Biology

By ALLRED SYLVESTER, EMMA P BENENATI

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Ponderosa

By Sylvester Allred

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The natural history of tassel eared squirrels

By Sylvester Allred

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"I live in the middle of an almost two-million-acre ponderosa pine forest--the largest in the world. In moments I can leave my home and be in the habitat of the tassel-eared squirrel, which I have...

The Forestalphabet Encyclopedia Naturencyclopedia

By Sylvester Allred

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The DesertAlphabet

By Sylvester Allred

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Two monsters

By Lucretia Fisher, Mary Leister

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Two lonely monsters on different sides of a wide and bottomless chasm become dear friends and continually search for ways to bridge the gorge.

Rascal the Tassel Eared Squirrel

By Sylvester Allred

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The St. Petersburg Addendum

By Dennis Burns, Sylvester Allred

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Principles of Biology

By Sylvester Allred

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Ponderosa

By Sylvester Allred

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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.