David Kalhous Books

Bohemi

By David Kalhous

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Ceske zeme za prvnich Premyslovcu v 10. 12. stoleti

By David Kalhous

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Historiography and Identity VI

By Pavlina Rychterova, David Kalhous

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Konigsherrschaft Im Zeitalter des Interregnums

By Ondrej Schmidt, Lukas Reitinger, David Kalhous, Lukas Fuhrer

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Legenda Christiani and modern historiography

By David Kalhous

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"Legenda Christiani and Modern Historiography focuses on the long history of the discussion over the authenticity of Legenda Christiani, a crucial text for the medieval history of the Czech lands....

Anatomy of a duchy

By David Kalhous

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Anatomy of a duchy

By David Kalhous

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Legenda Christiani and modern historiography

By David Kalhous

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"Legenda Christiani and Modern Historiography focuses on the long history of the discussion over the authenticity of Legenda Christiani, a crucial text for the medieval history of the Czech lands....

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.