Grzegorz Kasdepke Books

Bon czy ton savoir vivre dla dzieci

By Grzegorz Kasdepke

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The beast in my belly

By Grzegorz Kasdepke

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A young girl is puzzled, then frightened, by the growling, gurgling, and grunting she hears in her belly, but no one believes she has a beast living there.

Mity dla dzieci. 20 najpopularniejszych mitow greckich

By Grzegorz Kasdepke

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Kiedy bylem maly. Kiedy bylam mala

By Grzegorz Kasdepke, Anna Onichimowska

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To børnebogsforfatteres minder og sjove anekdoter fra barndommen

Bon czy ton

By Grzegorz Kasdepke

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Ostroznie

By Grzegorz Kasdepke

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Podobno dzieci najczęściej ulegają wypadkom we własnych domach. Czy można temu zaradzić? W dużej mierze tak. Trzeba uczulić je na pewne zagrożenia. Ostre przedmioty, gorące płyny, trujące substancj...

Kacperiada Opowiadania dla lobuzow i nie tylko

By Grzegorz Kasdepke

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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.