Calvin Miller Books

Much has changed over Calvin Miller's decades of pastoral ministry, but he believes two things remain the same: God is love and people are broken. Now God is calling young pastors to stand in that...

Letters to heaven

By Calvin Miller

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In these masterfully written letters to heaven, Calvin Miller thanks, lovingly reflects on, and sometimes confesses his regrets to the departed influences in his life. Some are names familiar to us...

Into the Depths of God: Where Eyes See the Invisible, Ears Hear the Inaudible, and Minds Conceive the Inconceivable

By Calvin Miller

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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.