Greg Sommers Books

Legal and ethical issues for mental health professionals

By Greg Sommers, Kathy Knowlton, Stephen R. Feldman

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"What's the difference between privilege and confidentiality? When are therapists allowed to break confidentiality and when are they required to? When can progress notes or confidential psychothe...

Valuation Using Financial Statements

By Greg Sommers, Peter Easton, Phil Drake

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Valuation Using Financial Statements

By Greg Sommers, Peter Easton, Phil Drake

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Financial Statement Analysis Valuation

By Greg Sommers, Mary Lea McAnally, Peter Easton, Steve Crawford

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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.