William F. Fry Books

Make Em Laugh

By William Jr. Fry, Melanie Allen, William F. Fry

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Sweet Madness

By William F. Fry

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Handbook of Humor and Psychotherapy

By William F. Fry

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Advances in humor and psychotherapy

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Sweet Madness

By William F. Fry

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"Written for all who are interested in the mechanics of humor, Sweet Madness presents a general discussion and introduction to the roles of paradox, metaphor, and fantasy in humor. The operation of...

Sweet madness

By William F. Fry

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Life studies of comedy writers

By William F. Fry

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El humor y el bienestar en las intervenciones clinicas

By Waleed A. Salameh, William F. Fry

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Sweet Madness

By William F. Fry

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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.