Evelin E. Sullivan Books

The Concise Book of Lying

By Evelin Sullivan

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The correspondence

By Evelin E. Sullivan

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Alex Merry, star of stage and screen, died a tragic and untimely death in 1988. Clearly, no one would be better suited to write his biography than George Fowler, his long-time friend. Fowler might...

Games of the blind

By Evelin E. Sullivan

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Four of fools

By Evelin E. Sullivan

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The characters: John Anders, a middle-aged ex-history professor with a ruined career; his young-wife, Vida, who immerses herself in her work with a disconcerting obsessiveness; Jim, their friend, a...

The dead magician

By Evelin E. Sullivan

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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.