Jean Luc Bannalec Books

"Commissaire Georges Dupin, a Parisian-born caffeine junkie recently relocated from the glamour of Paris to the remote (if picturesque) Breton coast, is not happy when he is dragged from his mornin...

Murder on Brittany shores

By Jean Luc Bannalec

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"Ten miles off the coast of Brittany lie the fabled Glenan Islands. Boasting sparkling white sands and crystal clear waters, they seem perfectly idyllic, until one day in May three bodies wash up o...

The Fleur de Sel murders

By Jean Luc Bannalec

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The old salt farmers have always said that the violet scent of the Fleur de Sel at harvest time on the salt marshes of the Guérande Peninsula has been known to cause hallucinations. Commissaire Dup...

Death in Pont Aven

By Jean Luc Bannalec

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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.