Herbert Genzmer Books

Accompanied by sensational photos and illustrations, the eight chapters of this book present some of the most significant catastrophes in the history of the world.

100 sacred places

By Herbert Genzmer

Average: 0.00, 0 Ratings

This book presents 100 of the most fascinating and awe-inspiring sacred places from all over the world--from Machu Picchu and the Nazca Lines in South America via Stonehenge, Lourdes, and Assisi in...

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.