Joanna Concejo Books

Il signor Nessuno

By Joanna Concejo

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Prince in a Pastry Shop

By Marek Bienczyk

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In a beautifully illustrated story for adults that is playful, philosophical, and with a wink of naughtiness, two characters—the Not-So-Little-Prince and Prickly Pear—consider the natur...

Prince in a Pastry Shop

By Marek Bienczyk

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In a beautifully illustrated story for adults that is playful, philosophical, and with a wink of naughtiness, two characters—the Not-So-Little-Prince and Prickly Pear—consider the natur...

Mr. Distinctive

By Olga Tokarczuk

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A gorgeously illustrated picture book for adults—with two gatefold pages inside—by Nobelist Olga Tokarczuk and illustrator Joanna Concejo, creators of The Lost SoulA devastating putdown...

Mr. Distinctive

By Olga Tokarczuk

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A gorgeously illustrated picture book for adults—with two gatefold pages inside—by Nobelist Olga Tokarczuk and illustrator Joanna Concejo, creators of The Lost SoulA devastating putdown...

The Lost Soul

By Olga Tokarczuk

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A beautifully illustrated meditation on the fullness of life for readers of all ages by by Nobel Prize-winning novelist Olga Tokarczuk."Olga Tokarczuk’s The Lost Soul, an experimental fable i...

The Lost Soul

By Olga Tokarczuk

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A beautifully illustrated meditation on the fullness of life for readers of all ages by by Nobel Prize-winning novelist Olga Tokarczuk."Olga Tokarczuk’s The Lost Soul, an experimental fable i...

Kiedy dojrzeja porzeczki

By Joanna Concejo

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Cando non atopas a tua casa

By Joanna Concejo, Paloma Sanchez Martinez

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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.