Rosemary Giesen Books

Traces the development of astronautics from the first unmanned artificial satellite through lunar landings to plans for space stations and extensive space travel.

The story of steel

By Brenda Thompson

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Briefly explains how iron is turned into steel and the uses of steel in our everyday lives.

Where Am I First Fact Book

By Sylvia Caveney, Rosemary Giesen, Simon Stern

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The Children's Crusade

By Brenda Thompson

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An account of the crusade during which thousands of children bound for Jerusalem died en route or were sold into slavery in Africa.

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.