Gretz Susanna. Books

Rabbit Food

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Uncle Bunny, who has been summoned to make sure that John joins his fellow rabbits in eating lots of vegetables, reveals a surprising dislike for carrots.

Roger takes charge!

By Gretz Susanna.

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Roger the pig and his neighbor's bossy daughter vie for the honor of being in charge when a parental absence frees them for rambunctious activities.

Frog in the Middle

By Gretz Susanna.

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Three friends maintain a friendship despite occasional jealousies.

Teddy Bears Stay Indoors

By Gretz Susanna., Susanna Gretz

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The five Teddy Bears amuse themselves on a rainy day playing that they go into space and, mostly, eating.

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.