Val Biro Books

Witches Galore
Tobias and the Dragon
Tobias and the Dragon

By Val Biro

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Rub a Dub Dub
Rub a Dub Dub

By Val Biro

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The creator of the popular vintage car, Gumdrop, illustrates his favorite traditional rhymes.

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Gumdrop Goes to London
Gumdrop Goes to London

By Biro Val

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Collected tales from Aesop's fables
Collected tales from Aesop's fables

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Gumdrop finds a ghost
Gumdrop finds a ghost

By Val Biro

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At Mildew Manor, Gumdrop discovers a real ghost for the owner who has wanted one.

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Gumdrop and the secret switches
Gumdrop and the secret switches

By Val Biro

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Horace the cocker spaniel discovers secret switches that cause the vintage car Gumdrop to do things no other 1926 Austin Heavy 12/4 has ever done before.

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Gumdrop finds a friend
Gumdrop finds a friend

By Val Biro

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When Mr. Oldcastle's vintage car Gumdrop is adopted by a small black dog, it becomes implicated in a smuggling operation.

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Gumdrop gets his wings
Gumdrop gets his wings

By Val Biro

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Mr. Oldcastle suffers many mishaps while trying to make Gumdrop the best-looking and safest vintage car on the road.

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Gumdrop in double trouble
Gumdrop in double trouble

By Val Biro

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With an ailing car full of children, Mr. Oldcastle pursues a thief into the midst of a children's fancy dress competition.

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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.

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