Konrad Knirim Books

Militäruhren. Die Uhren Der Deutschen Streitkräfte 1870 Bis 1990. Das Kaiserreich Und Der 1. Weltkrieg Bis 1918. Die Weimarer Republik Bis 1933. Das 'Dritte Reich' Und Der 2. Weltkrieg Bis 1945. Die Nachkriegszeit Ab 1945.

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Arbeiten des Sammlers Konrad Knirim ist gewidmet Durchforschung des Themas der Uhren in Deutscher Armee seit 1870 und beendet 1990 Jahr.Buch enth?lt Menge der Lichtbilder, Dokumente, Illustrationen...

Military Timepieces

By Konrad Knirim, Marvin E. Whitney

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Marvin Whitney began his extensive research for this book in the mid-eighties. He took advantage of archive records in Washington, D.C. and travelled extensively in New York, Pennsylvania, an New E...

Militäruhren.

By Konrad Knirim

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新・軍用時計物語―戦場を駆け抜けてきた兵士たちの腕時計

By Konrad Knirim, 今井今朝春

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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.