Robert Kraus Books

Squirmy's big secret

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The worm in the apple on Miss Gator's desk joins in the learning activities of the other animal students in her schoolroom, but they do not know his name until a good deed draws more attention to him.

Klunky Monkey, new kid in class

By Robert Kraus

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When new student Klunky Monkey's constant sharing of his bananas makes all the animals in school grow chunky like him, Miss Gator begins a shape-up program for everyone.

Where are you going, little mouse?

By Robert Kraus

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A little mouse runs away from home to find a "nicer" family, but when darkness comes, he misses them and realizes how much he loves them.

Come out and play, little mouse

By Robert Kraus

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Big Brother saves Little Mouse from a cat's treacherous invitation to come out and play.

Big brother.

By Robert Kraus

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Troubled by the thought of always being smaller than his older brother, little brother's worries diminish when his mother returns home from the hospital.

How spider saved Halloween.

By Robert Kraus

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Fly and Ladybug's squashed Jack-o-lantern helps Spider think of a costume that saves Halloween from disaster.

The adventures of Wise Old Owl

By Robert Kraus

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Wise Old Owl, the author, takes time out from his work to visit a class of aspiring young writers.

Wise Old Owl's Christmas adventure

By Robert Kraus

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Wise Old Owl almost misses Amanda Bear's Christmas party at which he is supposed to play Santa Claus.

Wise Old Owl's Christmas adventure

By Robert Kraus

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Wise Old Owl almost misses Amanda Bear's Christmas party at which he is supposed to play Santa Claus.

Wise Old Owl's canoe trip adventure

By Robert Kraus

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With Slow Turtle as his guide, Wise Old Owl has a memorable canoe trip over a waterfall.

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.