Marie Halun Bloch Books

Footprints in the swamp

By Marie Halun Bloch

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Describes the first mammals that began to appear in the prehistoric world as the dinosaurs were declining.

Displaced Person

By Marie Halun Bloch

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Ivanko and the Dragon

By Marie Halun Bloch

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Displaced Person

By Marie Halun Bloch, Allen Davis

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Fourteen-year-old Stefan, a Ukrainian refugee, struggles to survive as a displaced person in Nazi Germany during the final days of World War II.

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.