John Glasby Books

Encyclopedia of the alkaloids

By John S. Glasby

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Encyclopedia of the Alkaloids: Volume 4

By John Glasby

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Day of violence

By John S. Glasby

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Hideout at Mender s Crossing

By John S. Glasby

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"The ghost town of Mender's Crossing was the ideal base for a gang of outlaws to operate from without interference. Then, a group of soldiers are killed defending a gold-train and the army calls up...

The Mammoth Book of Ghost Stories 2

By Richard Dalby

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The Dark Boatman

By John Glasby

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Twelve hours to destiny

By Manning K. Robertson

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At the height of the Cold War one of the most trusted and important British agents in Hong Kong, Chao Lin, suddenly vanishes, and in London Steve Carradine is put on the case. Now hints are filteri...

Hideout at Mender s Crossing

By John S. Glasby

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"The ghost town of Mender's Crossing is the ideal base for a gang of outlaws operating without interference. When a group of soldiers is killed defending a gold-train, the army calls upon special o...

The Lonely Shadows and Other Stories

By John Glasby

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The midnight moon rode high and the house seemed to transmute the moonlight into something terrible. The broken chimneys stretched up like hands to the heavens, the eyeless sockets of the windows s...

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.