William Earl Johns Books

Biggles big adventure

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"Four of the best stories brought together in the popular felxiback jumbo format. The most popular boys' adventure hero of the 20th century revived."--Publisher.

Le cygne jaune

By Bergese Johns

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Les pirates du pole sud

By Johns Bergese

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Biggles heritage

By Western., Embleton, Johns

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Biggles contre le docteur Zanchu

By William Earl Johns, Mike Western, Ron Embleton

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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.