Harry Kalmer Books

X-ray visagie en die vingers van God

By Harry Kalmer

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En die lekkerste deel van dood wees

By Harry Kalmer

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A thousand tales of Johannesburg

By Harry Kalmer

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"This is the story of Sara, who poses stiffly for a photo with her four children at Turffontein concentration camp in 1901, and of Abraham, who paints the street names of Johannesburg's kerbs. It i...

A thousand tales of Johannesburg

By Harry Kalmer

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Bram Fischer Wals

By Harry Kalmer, George Bizos

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Bram Fischer Waltz

By Harry Kalmer

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Facets of Power

By Harry Kalmer

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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.