Roland Merullo Books

What happens when the Pope and the Dalai Lama decide they need a secret vacation? Roland Merullo’s playful, eloquent, and life-affirming novel finds the world’s two holiest men teaming up for an...

The delight of being ordinary

By Roland Merullo

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"Roland Merullo's playful, eloquent, and life-affirming novel finds the Pope and the Dalai Lama teaming up for an unsanctioned road trip through the Italian countryside to rediscover the everyday j...

Halting the Arms Race

By Roland Merullo

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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.