Walter C. Langer Books

Reproduces the secret report on Hitler's psychological state written by Langer in 1943 for the U.S. Office of Strategic Services, with the collaboration of Henry A. Murr, Ernst Kris, and Bertram D....

Das Adolf Hitler Psychogramm eine Analyse seiner Person und seines Verhaltens verf. 1943 fur die psychologische Kriegsfuhrung der USA

By J.C. Fest

Average: 0.00, 0 Ratings

Mind of Adolf Hitler

By Walter C. Langer

Average: 0.00, 0 Ratings

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.