Sophia Kalkau Books

Sophia Kalkau

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For almost two decades now, with sculpture and photography with object and images, Sophie Kalkau has been busy scrutinizing and making visual poetic reflections on the relationship between the body...

Sophia Kalkau

By Caroline Nymark Zachariassen, Sophia Kalkau

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Discover poetic white, matt black and silver-tinted sculptures and photographs, in which body and sculpture come together in quirky, unsettling and wonderful expressions. Kalkau?s sculptures are ch...

Kettys have

By Sophia Kalkau

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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.