Helen Johns Books

Happiness, Economics And Public Policy

By Paul Ormerod, Johns, Helen M. Sc., Helen Johns, Helen Johns And Paul Ormerod, With Commentaries By Samuel Brittan And Melanie Powell

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A robust critique of the so-called 'economics of happiness' With commentaries by Samuel Brittan and Melanie Powell. In Happiness, Economics and Public Policy , Helen Johns and Paul Ormerod analyse...

Choices

By Helen Johns, Robert A. Leadley, Robert Leadley

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La Vida con Dios

By Helen Johns, Arnoldo J. Casas

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Would You Believe an Angel

By Bonnie Zimmer, Diana Schwartz, Suzan Burish

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Life With God: First Steps

By Curtis Byers, Helen Johns, Curtis Byers With Helen Johns

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64 p. : 22 cm

He Said She Said

By Helen Johns, Jonathan Broadbent, Erin Kelly

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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.