Ep De Ruiter Books

Jan Adam Zandleven 1868 1923

By Ep De Ruiter, Jaap Verhage, Katjuscha Otte, Onno Maurer

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Monografie over de Nederlandse kunstschilder (1868-1923).

Schatten van Amersfoort

By Ep De Ruiter, Manon Mesdag, Lydia Edelkoort Van Der Vlerk, Gerard Raven

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Vijftig topstukken werden al eerder beschreven, ter gelegenheid van het 125-jarig bestaan van de OVF. Ludo Jongen, Fred van Kan, Onno Maurer, Gerard Raven en Francien Snieder publiceerden toen 'Ver...

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.