Melinda Thielbar Books

The Secret Ghost

By Melinda Thielbar Tintin Pantoja

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The ancient formula

By Melinda Thielbar

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The students of Sifu Faiza's Kung Fu School use their knowledge of fractions as they try to discover what happened to Leung Jan's long-lost healing formula.

The book bandit

By Melinda Thielbar

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When the public library offers a prize for figuring out how a "book monster" sculpture was fit in through a small window in their Reader's Corner, the students of Sifu Faiza's Kung Fu School use ge...

The runaway puppy

By Melinda Thielbar

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Instructor Based Training SAS Enterprise Guide

By Catherine Truxillo Melinda Thielbar

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Manga Math Mysteries A Mystery With Fractions

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The Fishy Fountain A Mystery With Multiplication And Division

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The Book Bandit Manga Math Mysteries

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Lost Key

By Melinda Thielbar

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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.