Louise Ulmer Books

For the Bible tells me so

By Louise Ulmer

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Presents three familiar Bible stories as plays that can be performed with the accompanying paper puppets and stage.

Daniel and the Roaring Lions Daniel 6 1 28 for Children

By Louise Ulmer

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Help, I'm in trouble!

By Louise Ulmer

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A collection of stories featuring young teenagers dealing with various problems and finding solutions through the application of Christian principles. A Bible verse follows each story.

Charity and the great adventure

By Louise Ulmer

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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.