Robyn Supraner Books

Mystery of the Witch s Shoes

By Robyn Supraner

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Mystery at the Zoo Troll Read Along

By Robyn Supraner

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Ghost in the Attic Troll Easy To Read Mystery

By Robyn Supraner

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Mrs. Wigglesworth s Secret Troll Easy To Read Mystery

By Robyn Supraner

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The case of the missing canary

By Robyn Supraner

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When Popcorn, the canary, disappears from his cage, Patty and her friends try to find him. Could White Toe, the cat, with a yellow feather in her mouth, have eaten him?

Mystery of the witch's shoes

By Robyn Supraner

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Molly helps a forgetful witch locate a few missing items.

The ghost in the attic

By Robyn Supraner

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Knowing that he is not imagining the strange sounds he hears and that things cannot be mysteriously disappearing, Peter gathers courage to investigate in the attic.

Magic tricks you can do!

By Robyn Supraner

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Sheldon and Rosie demonstrate a variety of simple and amusing magic tricks.

Magic tricks you can do!

By Robyn Supraner

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Sheldon and Rosie demonstrate a variety of simple and amusing magic tricks.

Happy Halloween

By Robyn Supraner

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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.