Mary McHugh Books

Psychology and the new woman

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Introduces a wide variety of careers available for women in the field of psychology, such as an industrial psychologist, biopsychologist, and consumer psychologist, and discusses the necessary trai...

Law and the new woman

By Mary McHugh

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An introduction to the requirements for and types of jobs available in a law career, with emphasis on the problems and opportunities for women in this profession.

Careers in engineering and engineering technology

By Mary McHugh

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Discusses various jobs in the engineering field, the training needed, and starting salaries. Includes a list of schools providing training.

How Not To Become A Little Old Lady

By Mary McHugh

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How to Ruin Your Marriage

By Mary McHugh

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Clean This

By Mary McHugh

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How to Ruin Your Sister s Life

By Mary McHugh

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How Not to Become a Little Old Lady

By Mary McHugh

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Special siblings

By Mary McHugh

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Eat This 8 Copy Display

By Mary McHugh

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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.