J. Allen Queen Books

The frazzled principal's wellness plan

By J. Allen Queen

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The Frazzled Principal s Wellness Plan

By Patsy S. Queen, J. Allen Queen

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Total karate

By J. Allen Queen

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A training guide to karate, detailing the exercises, skills, and techniques involved in competition stances, self-defense maneuvers, and other aspects of the sport.

Karate basics

By J. Allen Queen

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Introduces the art of karate, discussing workout space, clothing, safety, nutrition, related rituals and exercises, and the stances, punches, kicks, and blocks.

Karate basics

By J. Allen Queen

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Karate handbook

By J. Allen Queen

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Instructions in basic techniques of karate, especially for the young child, with more than 200 photographs.

Karate handbook

By J. Allen Queen

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Instructions in basic techniques of karate, especially for the young child, with more than 200 photographs.

Karate handbook

By J. Allen Queen

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Learn karate

By J. Allen Queen

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Introduces the philosophy, uniform, stances, kicks, punches, strikes, and sparring and competition techniques of karate.

Learn karate

By J. Allen Queen

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Introduces the philosophy, uniform, stances, kicks, punches, strikes, and sparring and competition techniques of karate.

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.