Sam Toperoff Books

Sugar Ray Leonard and Other Noble Warriors Sportspages

By Sam Toperoff

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Lillian and Dash

By Sam Toperoff, Lorna Raver, Mark Bramhall, Bernadette Dunne

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Visions, the great cities of Europe

By Roy A. Hammond

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An aerial tour of various European cities from a helicopter-mounted camera featuring informative narrative and a soundtrack set to regional music.

Visions of New York City

By Roy A. Hammond

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An aerial tour of New York City from a helicopter-mounted camera.

Visions of Puerto Rico

By Roy A. Hammond

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An aerial tour of Puerto Rico from a helicopter-mounted camera featuring informative narrative and a soundtrack set to regional music.

Visions of Greece

By Greece Ddamp 8715

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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.