William Barclay Books

The Letter to the Romans

By William Barclay

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Many Witnesses, One Lord

By William Barclay, William L. Barclay

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The Gospel of John, Volume Two

By William Barclay

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"The more we study John, the more wealth arises out of it," says William Barclay about the Fourth Gospel. In this volume, the second of two on the book of John, Barclay helps give the reader a shar...

Daily Devotions with William Barclay: 365 Meditations on the Heart of the New Testament

By William Barclay

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With over ten million copies in print, the worldwide popularity of William Barclay's Daily Study Bible remains unsurpassed. Collected here in a single volume are some of William Barclay's finest wr...

The Gospel of Matthew - volume 1

By William Barclay

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The Gospel of Mark

By William Barclay

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The Gospel of Luke

By William Barclay

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Romans

By William Barclay

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The Gospel of John: v. 1

By William Barclay

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Galatians and Ephesians

By William Barclay

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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.