Kathryn A. Quinlan Books

Extraordinary people with disabilities

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Profiles seven dozen people throughout history with various physical or mental disabilities. Additional articles provide historical background on the disability rights movement.

Physical Therapist Assistant

By Kathryn A. Quinlan

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Surgical Technician

By E. Russell Primm

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Occupational Therapy Aide

By Kathryn A. Quinlan

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Makeup Artist

By Kathryn A. Quinlan

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Food service manager

By Kathryn A. Quinlan

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Outlines the educational requirements, duties, salary, employment outlook, and possible future positions for restaurant and food service managers.

Nurse assistant

By Kathryn A. Quinlan

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Outlines job responsibilities and the work environment of nurse assistants as well as the necessary training, job outlook, salary, and career potential.

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.