LeapFrog Firm Books

Amazing mammals

By LeapFrog Firm

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Learn about and experience the world of mammals in a wonderfully interactive environment.

The world of dinosaurs

By LeapFrog Firm

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Enter the world of the dinosaurs, great creatures who roamed the Earth millions of years ago.

Fiesta in the house

By LeapFrog Firm

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Builds vocabulary with over 100 words in English and Spanish.

Hit it Maestro

By LeapFrog Firm

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Children discover classical composers and create their own melodies as they explore 5 periods of classical music and learn famous works along with musical terms in this interactive book.

Disney Pixar Monsters Inc. activity storybook

By LeapFrog Firm

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Sulley is a monster who scares children for a living. One day he meets a little girl who isn't afraid of him.

Smart guide to 3rd grade

By LeapFrog Firm

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Alphabet adventures

By LeapFrog Firm

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Join Tad on his adventures with the alphabet. In Tad's dream, letters A to Z come to life and introduce him to the world of letters and letter sounds.

The day Leap ate olives

By LeapFrog Firm

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Pass the olives please!. Join Leap and his family as they enjoy their home cooked feast. Everything is fine until Leap refuses to eat a single olive.

Rainy day play

By LeapFrog Firm

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Its pouring rain and Dad's asleep on the couch. What can Leap, Tad and Lily do inside without waking up Dad? Will they let a rainy day get in the way of their indoor fun?

A bark in the dark

By LeapFrog Firm

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Bark! Snarl! Do you know what's lurking in the dark? Leap and Lily are scared and their imaginations are off and running.

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.