Penny McKinlay Books

Escape from Germany Sparks

By Penny McKinlay

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Escape from Germany Sparks

By Penny McKinlay

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Baby Bear s Nose

By Penny McKinlay

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Bumposaurus

By Penny McKinlay

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When a little brontosaurus keeps falling and bumping into things, his mother thinks he is the adventurous type, but his grandmother discovers the real reason.

Flabby Tabby

By Penny McKinlay

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Bumposaurus

By Penny McKinlay

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Flabby Tabby

By Penny McKinlay

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After Tabby gets stuck in the cat-door, she soon finds herself competing with a fitter feline for food, basket space, and cuddles, and decides that a secret Feline Fitness Program is in order to re...

Elephants don t do ballet

By Penny McKinlay

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Elephants Don t Do Ballet

By Penny McKinlay

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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.