Justin Krasner Books

TinkerActive Workbooks

By Odd Dot, Chad Thomas, Justin Krasner

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Show How Guides Drawing Animals

By Keith Zoo

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Show How Guides Drawing Magical Creatures

By Keith Zoo

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Crinkle crinkle little star

By Justin Krasner

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"Take an interactive journey through the night sky in an innovative, tactile board book, a special book that engages three senses--seeing, touching, and hearing... Babies can trace the imaginary li...

Show How Guides Drawing Animals

By Keith Zoo

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Show How Guides Drawing Magical Creatures

By Keith Zoo

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TinkerActive 1st Grade 3-In-1 Workbook

By Megan Hewes Butler, Justin Krasner, Les McClaine, Chad Thomas, Lauren Pettapiece

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TINKERACTIVE WORKBOOKS: 1ST GRADE DELUXE WORKBOOK is part of an illustrated educational series that combines curriculum-based exercises designed for all learners with hands-on activities to help ki...

Display Crinkle Crinkle Little Star

By Justin Krasner

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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.