Henry Winterfeld Manfred Michael Books

When the Pirates, a gang of young boys in the small town of Timpetill, become too rowdy, the adults decide to discipline them by leaving the town in the middle of the night.

Mystery of the Roman ransom.

By Henry Winterfeld Manfred Michael

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The purchase of a slave for their teacher leads a group of Roman schoolboys into a dangerous intrigue.

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.

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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.