Jenna McCarthy Books

Lola knows a lot

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Meet Lola! Lola knows a lot. She can cartwheel, she can tie her shoes ... she can make her sister crazy. The only thing Lola DOESN T know is if she s really ready to go to school.

Lola's Rules for Friendship

By Jenna McCarthy

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1 v. (unpaged) : 26 cm

Poppy Louise is not afraid of anything

By Jenna McCarthy

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What strikes fear in a girl who loves monsters, roller coasters, and spiders?

Poppy Louise is not afraid of anything

By Jenna McCarthy

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What strikes fear in a girl who loves monsters, roller coasters, and spiders?

Maggie Malone Gets the Royal Treatment

By Carolyn Evans, Jenna McCarthy

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Maggie Malone makes a splash

By Jenna McCarthy

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When Maggie learns that everyone at her new middle school belongs to a club, she decides to try the swim team then, using her magic boots, spends a day in the life of Marina Tide, a famous oceanogr...

The Size of Everything

By Erin Cole, Jenna McCarthy

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The parent trip

By Jenna McCarthy

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Pretty Much Screwed

By Jenna McCarthy

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Pretty Much Screwed

By Jenna McCarthy

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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.