Gerald Verner Books

The heel of Achilles

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"'I'M DONE FOR ... FIND X.1 ... DENE ... YOU MUST ... TOOTH-PASTE ... ' England is at war with Germany and Dene of the Secret Service tries to decipher his fatally wounded colleague's garbled messa...

The Crimson Ramblers

By Gerald Verner

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Noose for a lady

By Gerald Verner

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Sent to trial for the murder, by poison, of her husband John, Margaret Hallam is convicted and sentenced to death. Her appeal is dismissed and the Home Secretary refuses a reprieve. Simon Gale, an...

The third key

By Gerald Verner

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The Chained Man

By Gerald Verner

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1 volume (large print) ; 19 cm

The jockey

By Gerald Verner

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A man calling himself the Jockey begins a campaign against those who he believes have besmirched the good name of horse racing, escaping conviction through lack of evidence. In a message to the pre...

Alias The Ghost

By Gerald Verner

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The Twelve Apostles

By Gerald Verner

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The Grim Joker

By Gerald Verner

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Chained Man

By Gerald Verner

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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.