Wade Wellman Books

Sherlock Holmes's war of the worlds

By Manly Wade Wellman, Wade Wellman, Manly W. Wellman

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The Further Adventures of Sherlock Holmes: War of the Worlds

By Manly Wade Wellman Wade Wellman

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H.G. Wells meets Sherlock Holmes in this thrilling historical mystery in which the famous detective seeks the culprit behind an alien invasion Sherlock Holmes, Professor Challenger, and Dr. Watson...

The Further Adventures of Sherlock Holmes: War of the Worlds

By Manly Wade Wellman Wade Wellman

Average: 0.00, 0 Ratings

H.G. Wells meets Sherlock Holmes in this thrilling historical mystery in which the famous detective seeks the culprit behind an alien invasion Sherlock Holmes, Professor Challenger, and Dr. Watson...

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.