John Welsby Books

Regulating Utilities: Understanding The Issues

By Martin Howe, Martin, Geoffrey Whittington, Cavé, George Yarrow, Mark Armstrong, John Vickers, Jon Stern, John Welsby, M. E. Beesley, Martin Cave, David Newbery, Martin Cave, Jon Stern, Mark Armstrong, George Yarrow, Geoffrey Whittington, David Newbery, John Vickers, Martin Howe, John Welsby, M. E. Beesley, Bryan V. Carsberg

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"Utility regulation in Britain has now entered a phase in which debate is no longer so much concerned with whether it is preferable to rival systems but with how to shape the 'regulatory contract'...

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.