Nicoletta Costa Books

The New Puppy

By Nicoletta Costa

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Even though Billy's father thinks his new puppy is sometimes naughty, Billy thinks his is just perfect.

The Clever Dog

By Nicoletta Costa

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Billy's sheep dog, Bob, is so clever he can catch a biscuit in his mouth and fetch a ball.

The mischievous princess

By Paula Franklin

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Desperate to be rid of their mischievous daughter, the king and queen decide to give her hand in marriage to anyone who can pass three unusual ordeals.

Dressing Up Molly and Tom Book

By Nicoletta Costa

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The Missing Cat Molly and Tom Book

By Nicoletta Costa

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A Friend Comes to Play Molly and Tom Book

By Nicoletta Costa

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Molly & Tom, the birthday party

By Nicoletta Costa

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The baby puppy

By Nicoletta Costa

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The naughty puppy

By Nicoletta Costa

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The clever dog

By Nicoletta Costa

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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.