Zuza Vrbova Books

Rabbits

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Covers all aspects of keeping a rabbit, from choosing and buying the right one, to explaining how to clean, feed, and care for it.

Guinea pigs

By Zuza Vrbova

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Covers all aspects of keeping a guinea pig, from choosing and buying the right one, to explaining how to clean, feed, and care for it.

Budgerigars

By Zuza Vrbova

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A guide on how to care for a pet budgerigar.

Mountains

By Zuza Vrbova

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Describes the characteristics and formation of the world's mountains and the plant, animal, and human communities that live there.

Mountains

By Zuza Vrbova

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Describes the characteristics and formation of the world's mountains and the plant, animal, and human communities that live there.

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.