Jan Gerardi Books

In Time Andrew Lost

By J. C. Greenburg

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In the Garbage Andrew Lost

By J. C. Greenburg

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In the Jungle

By Jan Gerardi, J. C. Greenburg

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It's Color Time! (DreamWorks Trolls)

By Random House Illustrated By Jan Gerardi

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Fans of DreamWorks Animation’s TROLLS will love this amazingly detailed coloring book. Featuring a foiled cover and big pages, it’s perfect for boys, girls, and adults of all ages to co...

The Little Gardener

By Jan Gerardi

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Discover what it takes to become a little gardener with this interactive board book that's perfect for Earth Day and spring reading! The third title in the eco-friendly lift the flap board book s...

A Little Book About Colors (Leo Lionni's Friends)

By Jan Gerardi, Leo Lionni

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A new board book for the youngest fans of Leo Lionni--inspired by his bestselling classics!Discover a world full of color in this delightful board book inspired by the works of legendary children's...

Little Book about 123s Leo Lionni s Friends

By Jan Gerardi, Leo Lionni

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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.