Ernest Dudley Books

Dr. Morelle investigates

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"When Brian Cartwright receives a death threat, he calls in the famous criminologist Dr. Morelle to protect him. Apparently, he is to die at nine pm that same day. So with Cartwright alone, locked...

Dr Morelle intervenes

By Ernest Dudley

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'Doctor Morelle and Miss Frayle await the last train to London ... at its approach, the village station attendant rushes to open the level crossing gates. Later, however, on the train, they learn t...

Send for Dr. Morelle

By Ernest Dudley

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"Mrs. Lorrimer telephones Doctor Morelle claiming that she's in imminent mortal danger. In the morning her orange drink was poisoned, then she'd found a deadly snake in her bed and now toxic gas is...

Dr. Morelle elucidates

By Ernest Dudley

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In Dr. Morelle elucidates, Dr. Morelle expounds on seven puzzling cases in his inimitable manner. For The case of the man who was too clever, the doctor and his assistant Miss Frayle investigate th...

Dr. Morelle marches on

By Ernest Dudley

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Paula Webb visits Doctor Morelle with a startling confession. Believing that her former lover, nightclub owner Max Powers, had caused her sister's death, she shot him dead. A convincing story: Doct...

Meet Jimmy Strange

By Ernest Dudley

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Jimmy Strange was a mysterious young man who'd turn up when he was least expected; wherever there was trouble, he'd appear from behind some dark corner. No one knew much about him, though he was al...

Confess to Dr. Morelle

By Ernest Dudley

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Dr. Morelle and the Drummer Girl

By Ernest Dudley

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Alibi And Dr. Morelle

By Ernest Dudley

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The Harassed Hero

By Ernest Dudley

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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.