William L. Twining Books

"New to English law? Need to know how rules are made, interpreted and applied? This popular and well-established textbook will show you how. It simplifies legal method by combining examples with an...

How to do things with rules a primer of interpretation

By William L. Twining

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Legal theory and the legal academy

By William L. Twining, Michael Giudice, Maksymilian Del Mar

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Law in Context: Enlarging a Discipline

By William L. Twining

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Karl Llewellyn and the realist movement

By William L. Twining

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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.