Anna Blaszczyk Books

A Study of Household Spirits of Eastern Europe

By Nelinda, Ronesa Aveela, Anna Blaszczyk

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Marie Curie: A Quest For Light

By Frances Andreasen Osterfelt Anja Cetti Andersen Anna Blaszczyk

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Marie Curie's exceptional life and groundbreaking research changed the world, expanding scientific understanding, and creating new opportunities for women, as explored in this lavishly illustrated...

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.