Christine Harder Tangvald Books

Leo, the littlest lion

By Christine Harder Tangvald

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Leo tries to convince the larger lions not to eat Daniel, but it is Daniel's faith that saves him.

Dependable Dora Dove

By Christine Harder Tangvald

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Bow Wow Puppy learns to share

By Christine Harder Tangvald

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The Band of Merry Bandits

By Christine Harder Tangvald, Frank B. Minirth, Carrie Minirth, Renee Minirth, Buffalo Frank

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Buffalo Frank tells a group of young campers about two pioneer girls who get lost while picking flowers for their mother's birthday and are rescued by some friendly raccoons.

The best thing about Christmas

By Christine Harder Tangvald

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The best thing about Christmas is the birth of Jesus.

My own special body

By Christine Harder Tangvald

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The Best Thing about Christmas

By Christine Harder Tangvald

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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.