Elfie Donnelly Books

Benjamin Blumchen der erste Wetterelefant der Welt

By Elfie Donnelly

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Benjamin Blumchen auf hoher See

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So long Grandpa

By Elfie Donnelly

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A ten-year-old Viennese boy describes his close relationship with his seventy-nine-year-old grandfather and how he copes with the old man's illness and death.

Offbeat friends

By Elfie Donnelly

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A Viennese grade-schooler catches her parents off-guard when she smuggles an elderly mental patient whom she met in the park into their home.

Tina into two won't go

By Elfie Donnelly

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Eleven-year-old Tina, miserable about her parents' divorce, is surprised and delighted when her father, whom she sees infrequently, takes her to Teneriffe for Christmas, but her mother reports the...

A package for Miss Marshwater

By Elfie Donnelly

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Miss Marshwater's life is changed for the better by the arrival of two talking platypuses.

A package for Miss Marshwater

By Elfie Donnelly

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Miss Marshwater's life is changed for the better by the arrival of two talking platypuses.

Tina into two won't go

By Elfie Donnelly

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Fur Paare verboten.

By Elfie Donnelly

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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.