Alex J. Packer Books

Highs Over 150 Ways to Feel Really Really Good....Without Alcohol or Other Drugs

By Alex J. Packer

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The how rude handbook of family manners for teens

By Alex J. Packer

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Presents a handbook of family manners for teens and includes ten rudest things teens do at home, fifty commandments of family etiquette, table manners, sharing a room, writing thank-you notes, and...

The how rude! handbook of school manners for teens

By Alex J. Packer

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The how rude! handbook of friendship & dating manners for teens

By Alex J. Packer

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Wise Highs

By Pamela Espeland, Alex J. Packer

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How rude!

By Alex J. Packer

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A humorous but practical guide to good manners and social skills, discussing such areas as family life, behavior in public, manners in school, eating, and clothes.

Que Maleducado Guia de Buenas Maneras Adolescentes

By Alex J. PH.D. Packer

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How Rude

By Packer PH.D. Alex J

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How Rude

By Packer PH.D. Alex J

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Bringing up Parents

By Pamela Espeland, Jr Pulver, Alex J. Packer

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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.