William Earl Johns Books

Biggles Learns To Fly

By W. E. Johns, W. E. Johns, William Earl Johns

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Biggles is back! And with new retro-style covers he'll be bigger than ever!He tilted the machine on to its side, holding up his nose with the throttle, and commenced to slip wing-tip first towards...

Biggles Flies East

By CAPTAIN W.E. JOHNS

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Biggles and Co

By CAPTAIN W.E. JOHNS

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Biggles Learns To Fly

By W. E. Johns, W. E. Johns, William Earl Johns

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Biggles is back! And with new retro-style covers he'll be bigger than ever!He tilted the machine on to its side, holding up his nose with the throttle, and commenced to slip wing-tip first towards...

Biggles and Cruise of the Condor

By W. E. Johns

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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.