William H. Friedman Books

Practical group therapy

By William H. Friedman

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How to do groups

By William H. Friedman

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This book is for clinicians who are new to the practice of group therapy as well as for experienced group therapists who would like to review critical aspects of their work. It is a road map guidin...

How to Do Groups

By William H. Friedman

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Forever Young

By Mel Abfier, William H. Friedman, Don McClintock, Brenda Star

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How to Do Groups

By William H Friedman

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How to Do Groups: A Brief Introduction to Group Psychotherapy

By William H. Friedman

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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.