Don Sheppard Books

Don Sheppard is one of the few who have risen through the navy holding every rank and rate from seaman recruit to commander. A thirty-year naval career - from an eighteen-year old enlistee to destr...

Bluewater sailor

By Don Sheppard

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Destroyer Skipper

By Don Shepard, Don Sheppard

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Dividends of Decency

By Don Sheppard

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Riverine Brown Water Sailor in the Delta 1967

By Sheppard

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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.