Bastian Obermayer Books

From the winners of the 2017 Pulitzer Prize for Explanatory Reporting 11.5 million documents sent through encrypted channels. The secret records of 214,000 offshore companies. The largest data leak...

Panama Papers

By Bastian Obermayer, Frederik Obermaier

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Chinese Phantom

By Philipp Grull, Christoph Giesen, Bastian Obermayer, Simon Pare, Frederik Obermaier

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Schweizer Geheimnisse

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Panama Papers

By Bastian Obermayer, Frederik Obermaier

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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.