Charles DUMAS Books

The Hague School Dutch Masters of the 19th Century

Average: 0.00, 0 Ratings

The Bill from the China Shop

By CHARLES DUMAS, Diana Choyleva

Average: 0.00, 0 Ratings

Contes Et Legendes Des Pays D orient

By Charles DUmas

Average: 0.00, 0 Ratings

Het verheerlijkt Den Haag

By Charles Dumas

Average: 0.00, 0 Ratings

Johan de Witthuis

By Kees Stal

Average: 0.00, 0 Ratings

Johan de Witt woonde drie jaar op de Kneuterdijk en is ongetwijfeld de beroemdste bewonder van het huis op nummer 6. Als wij de geschiedenis van deze plek overzien, moeten wij vaststellen dat hier...

Decarbonomics in the Post Pandemi

By Charles DUMAS

Average: 0.00, 0 Ratings

China and America

By Charles E. Dumas

Average: 0.00, 0 Ratings

"In the US the current credit crunch is likely to be followed by an economic downswing, led by housing, but with weakened household wealth and confidence prolonging the pain. US policy-makers seem...

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.