John M. Del Vecchio Books

Darkness falls

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"The pressures of modern life in the suburbs at the end of the twentieth century are catching up with John Panuzio - debt, status, family, and the very town he grew up in are all creaking on the ax...

The 13th Valley

By John M. Del Vecchio

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Darkness Falls

By John M. Del Vecchio

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For the sake of all living things.

By John M. Del Vecchio

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Thirteenth Valley

By John M. Del Vecchio

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For the sake of all living things

By John M. Del Vecchio

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Carry me home

By John M. Del Vecchio

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Rare is the novel that speaks for an entire generation, that captures a pivotal moment in our lives, that sums up an era. Carry Me Home marks just such an accomplishment, an extraordinary achieveme...

The 13th Valley

By John M. Del Vecchio

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Thirteenth Valley

By John M. Del Vecchio

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13th Valley The

By John Del Vecchio

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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.