Victoria Kosara Books

IHatch chicks

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"Carly and Sam are hatching chicks for a school project. They can't wait to meet the cute, fluffy babies. But then the chicks hatch early and get lost in Carly's loft. Carly and Sam worry that t...

Graduation party

By Victoria Kosara

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Clifford and his friends help the Howards with Emily Elizabeth's graduation party.

Barbie Barbie and the Fashion Fairytale

By Victoria Kosara

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Lonesome George finds his friends

By Victoria Kosara

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Lonesome George is a famous Galapagos tortoise. He's thought to be the only Galapagos tortoise left in the world. Kids will love following him as he meets other unique animals that live in the Gala...

Working Like a Scientist

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Lonesome George Finds His Friends

By Victoria Kosara

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Un Dipl me Pour milie

By Victoria Kosara, Jim Durk

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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.