Robin Jones Books

Further programming for the ZX Spectrum

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On a whim

By Robin Jones Gunn

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The Art of Lisp Programming

By Robin Jones

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Many of us already have at least a passing acquaintance with procedural languages such as BASIC or Pascal, but may not have met a functional language like Lisp before. Using the same enjoyable and...

The Art of Lisp Programming

By Clive Maynard, Robin Jones, Ian Stewart

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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.