John Astrop Books

Storytime for 4 Year Olds Ladybird Storytime

By John Astrop, Joan Stimson, Caroline Astrop

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Storytime for 6 Year Olds Ladybird Storytime

By John Astrop, Joan Stimson, Caroline Astrop

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The pocket book of board games

By John Astrop

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Oracle of the Radiant Sun

By John Astrop, Caroline Smith, Eddison Books LTD

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Lester's busy day

By Angela Royston

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Lester the mouse is outrageously flattered by his animal friends, who want him to fight the cat, to the point where he begins to believe he can do it.

Lester and the Weeds

By Angela Sheehan, Jill Coleman

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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.