Penny Frank Books

King Nebuchadnezzar's golden statue

By Penny Frank

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King Nebuchadnezzar's golden statue

By Penny Frank

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When Jesus was young

By Penny Frank

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Recounts Jesus's childhood up to the time his parents lost him and found him three days later talking to the wise men in the temple in Jerusalem.

Joseph and the king of Egypt

By Penny Frank

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Recounts how Joseph saved God's people from the famine after his brothers had sold him into slavery in Egypt.

Elijah and the prophets of Baal

By Penny Frank

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Retells the Old Testament story of the prophet Elijah, whose task was to turn the Israelites back to God.

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.