Ronald Rolheiser Books

Channeling the deep, mysterious desires of our hearts, Ronald Rolheiser leads readers from restlessness to peace, showing a contemporary path to authentic and healthy spiritual life—now featuring a...

The Restless Heart

By Ronald Rolheiser

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The Restless Heart

By Ronald Rolheiser

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A thoughtful exploration of loneliness, in the tradition of Henri Nouwen's classic Reaching Out. Loneliness may be more pervasive now than at any other time in human history. Cell phones and "insta...

Forgotten Among the Lilies

By Ronald Rolheiser

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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.