Barbara F. Okun Books

Saying Goodbye

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When someone you love receives a terminal diagnosis, the whole family is suddenly faced with a prolonged crisis. While medical advances have given us the gift of extending life, meaning that a lo...

Working with Adults

By Barbara F. Okun

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Effective helping

By Barbara F. Okun

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Effective helping

By Barbara F. Okun

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Effective Helping

By Barbara F. Okun

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Thousands of readers have become effective and empathic helpers with Barbara Okun's practical introduction to human relations counseling. Logical, easy-to-understand, and applicable, the book's uni...

Understanding Diversity

By Barbara F. Okun, Marcia L. Okun, Jane Fried

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Effective Helping

By Barbara F. Okun

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Don't call me Fatso

By Barbara Phillips, Barbara Philips

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Unhappy with herself and the reactions of others to her, overweight Rita gains more control over her life as she realizes the advantages of exercise and healthy eating habits.

Effective helping

By Barbara F. Okun

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Working W Families

By Okun, Barbara F. Okun

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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.