John D. Haeger Books

The Growing Use Of Part-Time Faculty: Understanding Causes And Effects

By John D. Haeger, Donald N. Langenberg, Pamela S Tolbert, Eileen Appelbaum, David W. Leslie, M. Edith Rasell, Ernst Benjamin, Frederic Jacobs, Janet H. Lawrence, Catherine D. Gaddy, Barbara A. Wyles

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Part-time And Temporary Faculty Now Constitute A Majority Of All Those Teaching In Colleges And Universities. This Volume Presents Analyses Of The Changes In Academic Work, In Faculty Careers, And...

John Jacob Astor

By John D. Haeger

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The Investment Frontier

By John D. Haeger

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The investment frontier

By John D. Haeger

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The bosses

By John D. Haeger

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The bosses

By John D. Haeger

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John Jacob Astor

By John Denis Haeger

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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.