Hank Hanegraaff Books

Seven Questions of a Promise Keeper

By Thomas S. Fortson, Tom Fortson, Hank Hanegraaff

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The Bible Answer Book for Students

By Hank Hanegraaff

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Decker's Complete handbook on Mormonism

By Ed Decker

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DECKER’S COMPLETE HANDBOOK ON MORMONISM is an all-in-one volume, specifically created for those who want a clear, concise overview of Mormonism at their fingertips. Arranged alphabetically, this...

Christianity in Crisis Spanish Edition

By Ginny Williams, Hank H. Hanegraaff

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Christianity in crisis

By Hank Hanegraaff

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The Apologetics Study Bible Apologetics Bible

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The Apologetics Study Bible Apologetics Bible Black

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The Apologetics Study Bible Apologetics Bible

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The Apologetics Study Bible Apologetics Bible

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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.