H. Michael Zal Books

The sandwich generation

By H. Michael Zal

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Ten steps to relieve anxiety

By H. Michael Zal

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Zal explores the emotional and physical aspects of anxiety, and the treatment options available. He illustrates simple yet effective techniques and treatments to handle anxiety in ten easy-to-follo...

Panic Disorder

By D.O. F.A.C.N. H. Michael Zal, H. Michael Zal

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The Sandwich Generation

By H. Michael Zal

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Panic Disorder

By H. Michael Zal

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Sandwich Generation

By H. Michael Zal

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A psychiatrist s guide to successful retirement and aging

By H. Michael Zal

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Psychiatrist s Guide to Successful Retirement and Aging

By H. Michael Zal

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Dancing with Medusa

By H. Michael Zal

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"This is a story about Bella, a beautiful tale of caring, trust and emotional healing. It begins when Dr. Zal, a first-year resident in Psychiatry, meets a 20-year-old in the throws of a severe psy...

Dancing with Medusa

By H. Michael Zal

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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.