Lisa Eisenberg Books

An illustrated collection of insect riddles including "Why do bees hum? They don't know the words!" and "What is the best year for grasshoppers? Leap year!"

Snakey Riddles

By Lisa Eisenberg, Katy Hall

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Spacey Riddles

By Lisa Eisenberg, Katy Hall

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Includes riddles about the sun, stars, moon, planets, and space travel.

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.