Robert Kraus Books

Little Louie the baby bloomer

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Leo the tiger worries and wonders why his little brother can't do anything right, but his parents encourage Leo to be patient.

Dr. Mouse, Bungle Jungle doctor

By Robert Kraus

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Dr. Mouse, Bungle Jungle doctor

By Robert Kraus

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Where are you going, little mouse?

By Robert Kraus

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Tony the tow truck

By Robert Kraus

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When Tony the Tow Truck gets stuck, none of the cars will stop to help until friend Bumpy comes along. On board pages.

The Practice of echocardiography

By Robert Kraus

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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.