Jessica Allen Books

The Magic of Astrology

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Quotable men of the twentieth century

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"Quotable Men of the Twentieth Century showcases the famous words of famous men, as well as the poignant and memorable quotes of others - men whose particular blends of wit and wisdom have articula...

The Wit and Wisdom of Jesse the Body...the Mind Ventura

By Jessica Allen, Jesse Ventura

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The 50 States Book and Magnetic Puzzle Map

By Creative Media Applications

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Treasure schools

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Great American Read the Book of Books

By PBS

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The Magic of Astrology

By Jessica Allen

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Find your place in the stars with this fun and accessible guide to the 12 signs of the zodiac. Are you spontaneous and impulsive, or do you like to look before you leap? Are you constantly full to...

My First Paper Airplane Book

By Jessica Allen

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Get ready to soar high, fast, and far with My First Paper Airplane Book for kids ages 4−6!Welcome to the wonderful world of paper airplanes, where curiosity and creativity meet engineering an...

Quotable Men of the Twentieth Century

By Jessica Allen

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The 50 States Fact Book

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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.