Bill Roorbach Books

"Our secrets can come to define us, and sometimes after lying asleep for a long spell, a secret can awake frantic and hungry. Coop Henry's secret needs attention. His missing brother haunts his lif...

Writing Life Stories

By Bill Roorbach

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How to Make Memories into Memoirs, Ideas into Essays, and Life into LiteratureFrom drawing a map of a remembered neighborhood to signing a form releasing yourself to take risks in your work, Roorba...

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.