John R. Haule Books

Divine madness

By John R. Haule

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The love cure

By John R. Haule

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In the profoundly intimate exchange of therapy, patients allow a therapist to enter the most personal and private reaches of their lives. As patients expose the most touchy details of their innermo...

Perils of the soul

By John R. Haule

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The Ecstasies of St. Francis

By John R. Haule

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Power in the Helping Professions

By Myron Gubitz, Adolf Guggenbuhl Craig, John R. Haule

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Perils of the Soul

By John R. Haule

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Divine Madness

By John Ryan Haule

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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.