Catherine Kereku Books

Benson the Cat

By Rinna Borisova, Catherine Kereku

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Passion Changes the Game

By Catherine Kereku

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Oko Loves Singing

By Catherine Kereku, Stefan Bogdasarov

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Nancy Talks a Lot

By Jovan Carl Segura, Catherine Kereku

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Happy - Kukurei (Te Kiribati)

By Catherine Kereku

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My name is Happy because I love doing things that make me happy! What makes you happy? Arau boni Kukurei ibukina bwa I kani kaakaraoi mmwakuri aika N na kukurei iai. Teraa te bwai ae e kakukureiko?...

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.