Allen J. Ottens Books

General John A. Rawlins

By Allen J. Ottens

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Coping with academic anxiety

By Allen J. Ottens

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Coping with romantic breakup

By Allen J. Ottens

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Gives advice to male and female adolescents on understanding and dealing with the unhappy breakup of a love relationship.

Coping with satanism

By Allen J. Ottens

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Presents arguments for treating teen satanic worship as a mental health problem rather than a religious issue. Provides information about rituals and symbols, and points out risk factors to help th...

General John A. Rawlins

By Allen J. Ottens

Average: 0.00, 0 Ratings

General John A. Rawlins

By Allen J. Ottens

Average: 0.00, 0 Ratings

Satanism

By Allen J. Ottens, Rick Myer

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Presents arguments for treating teen satanic worship as a mental health problem rather than a religious issue and provides information about rituals and symbols, signs of involvement, and the contr...

Sexual Violence on Campus

By Allen J. Ottens, Kathy Hotelling

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Sexual Violence on Campus

By Allen J. Ottens, Kathy Hotelling

Average: 0.00, 0 Ratings

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.