Edwin Robertson Books

Selected Writings

By Edwin Robertson

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The Shame and the Sacrifice

By Edwin Hanton Robertson

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Christ The Center

By Edwin Robertson, Dietrich Bonhoeffer

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Here is the key to thought of one of our time's central moral figures. It reveals Bonhoeffer's deep, firm roots in Christian doctrine, and it relates that doctrine to twentieth-century decisions ev...

The Local Radio Handbook

By Edwin Robertson

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Wycliffe Morning Star of the Reformation

By Edwin Robertson

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The Shame of the Sacrifice: Life and Teaching of Dietrich Bonhoeffer

By E.H. Robertson, Edwin Hanton Robertson

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George Bell of Germany Ppr

By Edwin Robertson

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John Wycliffe

By Edwin Robertson

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J.B. Phillips, the wounded healer

By Vera Phillips

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Catching Fire

By Edwin Robertson

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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.