James Lequeux Books

Le Verrier magnificent and detestable astronomer

Average: 0.00, 0 Ratings

Le Verrier was a superb scientist. His discovery of Neptune in 1846 made him the most famous astronomer of his time. He produced a complete theory of the motions of the planets which served as a ba...

La nouvelle revolution astronomique

By James Lequeux

Average: 0.00, 0 Ratings

Le Verrier

By James Lequeux

Average: 0.00, 0 Ratings

Naissance evolution et mort des etoiles

By James Lequeux

Average: 0.00, 0 Ratings

Le milieu interstellaire

By James Lequeux

Average: 0.00, 0 Ratings

L univers devoile

By James Lequeux

Average: 0.00, 0 Ratings

Présente l'histoire de l'astronomie du XXe siècle : les débuts de l'astronomie contemporaine, les grands télescopes, les nouveaux objets et domaines, la relation espace/ordinateur, l'époque de tran...

Francois Arago un savant genereux

By James Lequeux

Average: 0.00, 0 Ratings

Francois Arago, un savant genereux

By James Lequeux

Average: 0.00, 0 Ratings

Le Verrier

By James Lequeux

Average: 0.00, 0 Ratings

History of the Plurality of Worlds

By Pierre Connes, James Lequeux

Average: 0.00, 0 Ratings

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.