G Brian Karas Books

101 Questions and Answers About Pets and People

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Answers questions about the behavior, requirements, and physical characteristics of pets in such categories as dogs and cats, birds, fish, and pets who help people.

In the Hush of the Evening

By Nancy Price Graff

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A mother and child listen and look as night settles in.

Sid and Sam

By Nola Buck

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Sid sings a long song that drives Sam crazy.

Sid and Sam

By Nola Buck

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Sid sings a long song that drives Sam crazy.

The High-Rise Private Eyes 7: The Case of the Baffled Bear

By Jean Little

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Bunny and Jack, animal detectives, take a break from playing cards to look for Bernard Bear's missing messenger whistle.

The High-Rise Private Eyes 7: The Case of the Baffled Bear

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The High-Rise Private Eyes 7: The Case of the Baffled Bear

By Jean Little

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The Sundae Scoop

By Stuart J. Murphy

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Give Me Half!

By Stuart J. Murphy

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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.