John Lampen Books

Quaker Roots and Branches explores what Quakers call their "testimonies"--the interaction of inspiration, faith and action to bring change in the world. It looks at Quaker concerns around the susta...

The worship kit

By John Lampen

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Answering the violence

By John Lampen

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As a people committed to peace, Friends have nonetheless, from time to time, sought to build close relationships with perpetrators of violence, with groups and individuals who may be labeled "oppre...

Hester and Sophie

By John Lampen, Rosie Ryder

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Quaker Quicks Inner Healing Inner Peace

By John Lampen

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No Alternative

By John Lampen

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Building the peace

By John Lampen

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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.