Richard Perlmutter Books

Beethoven s Wig Sing along Piano Classics

By Richard Perlmutter

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Beethoven s Wig

By Richard Perlmutter

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A Family Approach To Psychiatric Disorders

By Richard A. M.D. Perlmutter

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Beethoven's wig

By Richard Perlmutter

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An introduction to classical music provides information about some of the world's most notable composers and their works while putting silly lyrics to some of their masterpieces. Each track is also...

Beethoven s Wig Fun and Easy Piano

By Richard Perlmutter, Beethoven S Wig

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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.