Robert Hellenga Books

Chapter OneWhere I Want to BeI was twenty-nine years old when the Arno flooded its banks on Friday 4 November 1966. According to the Sunday New York Times the damage wasn't extensive, but by Monday...

The Fall of a Sparrow Reading Group Guide

By Robert Hellenga

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The Fall Of A Sparrow

By Robert Hellenga

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The Fall of a Sparrow examines the reawakening of life after a young woman has tragically died. At the heart of the novel is Alan Woodhull ("Woody"), a classics professor at a small midwestern col...

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.