David Casarett M.D. Books

Stoned

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A doctor discovers the surprising truth about marijuanaNo substance on earth is as hotly debated as marijuana. Opponents claim it’s dangerous, addictive, carcinogenic, and a gateway to s...

Shocked

By David J. Casarett

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"Not too long ago, when you were dead, you were dead. There was no coming back. But a little electricity, applied to the heart in just the right way, has changed all that. Now death has become just...

Shocked

By David Casarett

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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.