Robert Arthur Books

Misterio de la Arana de Plata
Misterio del Reloj Chillon
Misterio del Reloj Chillon

By Robert Arthur

Average: 0.00, 0 Ratings

Read More
Misterio de la Cueva de los Lamentos
Misterio De LA Calavera Parlante Alfred Hitchcock Y Los Tres Investigadores They Mystery of the Talking Skull
Misterio De Las Huellas Flameantes Alfred Hitchcock Y Los Tres Investigadores the Mystery of the Flaming Footprints
Den forsvundne skat.
Den forsvundne skat.

By Robert Arthur

Average: 0.00, 0 Ratings

Read More
The Mystery of the Flaming Footprints
The Mystery of the Talking Skull
The three investigators in The mystery of the wandering cave man
The three investigators in The mystery of the wandering cave man

By Robert Arthur, M. V. Carey

Average: 0.00, 0 Ratings

Three young sleuths investigate the disappearance of a caveman's bones from a museum and uncover skulduggery at a science foundation.

Read More
AN EAR FOR DANGER 5 The Three Investigators Crimebusters No 5

Related Articles from our Blog

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.

Read More