William Tuohy Books

Love journey into America

By William Tuohy, Tuohy William.

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Spring comes running.

By Tuohy William.

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The Bravest Man

By William Tuohy

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America s Fighting Admirals

By William Tuohy

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The Bravest Man

By William Tuohy

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“There’s no margin for mistakes in submarines. You’re either alive or dead.”–Richard O’KaneHailed as the ace of aces, captain Richard O’Kane, winner of the...

Dangerous company

By William Tuohy

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“There’s no margin for mistakes in submarines. You’re either alive or dead.”–Richard O’KaneHailed as the ace of aces, captain Richard O’Kane, winner of the Congressional Medal of Honor for his cons...

The Bravest Man

By William Tuohy

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“There’s no margin for mistakes in submarines. You’re either alive or dead.”–Richard O’KaneHailed as the ace of aces, captain Richard O’Kane, winner of the...

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.