Helen Bieri Thomson Books

Mucha, Le Pater

By Exposition Mucha Le Pater Illustrations Pour Le Notre Pere 2001 2002 Fondation Neumann Gingins Switzerland, Bernadette De Boysson, Anna Dvorak, Helen Bieri Thomson

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Mucha's illustrations originally appeared in a limited-edition book published Paris, 1899. The original studies are now in the collection of the Fondation Neumann, Gingis, Switzerland.

Salome danse et decadence

By Celine Eidenbenz, Helen Bieri Thomson, Helen Bieri

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Marguerite Burnat Provins 1872 1952

By Helen Bieri Thomson, Catherine Dubuis

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Les affiches du Salon des cent

By Helen Bieri

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Cette publication accompagne l'exposition permanente du château de Prangins (Lac Leman, Suisse) et propose au lecteur de découvrir l'atmosphère d'un temps passé. Construit au début du siècle des Lu...

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.