Phelan Cathy Books

I'm Glad You're My Grandpa

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Grandpas are great! So make sure your Grandpa knows just how much you appreciate him with this fantastic doodle book! With space for colouring, writing and your own drawings this is the perfect gif...

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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.

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