Jill Bobula Books

Eager Eddy

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Follows Eddy's activities at home and at school, and examines daily joys and challenges of dealing with the effects of attention deficit hyperactivity disorder. Explores how he uses energy in posit...

Quite quiet Hannah the world s greatest artist

By Jill Bobula

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Sad sad Seth the world s greatest writer depression

By Jill Bobula

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Follows Seth's activities at home and at school, and examines daily joys and challenges of dealing with the effects of Depression. Explores how he uses energy in positive ways, and explains helpful...

Daydreaming Dakota

By Jill Bobula

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Follows Dakota's activities at home and at school, and examines daily joys and challenges of dealing with the effects of attention deficit hyperactivity disorder. Explores how she uses energy in po...

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.