Timo Parvela Books

Ella ja kaverit matkalla jamboreelle

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"alkuvuodesta, kun oppilaat alkavat käyttäytyä oudosti. He nimittäin rakentavat siltoja, suunnistavat pimeässä ja tekevät nuotioita. Kaikki johtuu siitä, että Hanna haluaa partioleirille, jamboreel...

Puhuva koira

By Timo Parvela

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Isani on supermies

By Timo Parvela

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Ella ja Paterock

By Timo Parvela

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Ella Kahkaha Firtinasi

By Timo Parvela

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Ella cilgin Kar Tatili

By Timo Parvela

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Ella Rock Yildizi Pate

By Timo Parvela

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Countdown

By Bjo Sortland, Owen Witesman, Timo Parvela, Pasi Pitkanen

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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.