Jessica Ahlberg Books

Fairy tales for Mr. Barker

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Lucy is reading a fairy tale to Mr. Barker, but her dog has other ideas. When he jumps out the window landing in a cottage with a broken chair, three bowls of porridge, and a little golden-haired...

Fairytales for Mr Barker

By Jessica Ahlberg

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Peep through the holes in this delightful fairytale adventure. Once upon a time, there was a troll, says Lucy. But Mr Barker isn't listening. He's off on his own fairytale adventure. Who will he an...

Erase muchas veces Rizos de Oro

By Jessica Ahlberg, Alexandre Casal Vazquez, Allan Ahlberg

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Boy the Wolf the Sheep and the Lettuce

By Jessica Ahlberg, Allan Ahlberg

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Half a Pig

By Jessica Ahlberg, Allan Ahlberg

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Yucky Worms

By Jessica Ahlberg, Vivian French

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Yucky Worms

By Jessica Ahlberg, Vivian French

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Letters to Anyone and Everyone

By Jessica Ahlberg, Martin Cleaver, Toon Tellegen

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Letters to Anyone and Everyone

By Jessica Ahlberg, Toon Tellegen

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Squirrel s Birthday and Other Parties

By Jessica Ahlberg, Martin Cleaver, Toon Tellegen

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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.