Lothar Seiwert Books

How to Simplify Your Life: Seven Practical Steps to Letting Go of Your Burdens and Living a Happier Life

By Tiki Kustenmacher, Lothar J Seiwert, Lothar Seiwert

Average: 0.00, 0 Ratings

30 Minuten Zeitmanagement fur Chaoten

By Lothar J. Seiwert

Average: 0.00, 0 Ratings

30 Minuten fu r Work Life Balance

By Lothar Seiwert

Average: 0.00, 0 Ratings

Zeitmanagement mit Outlook

By Holger Woltje, Lothar Seiwert, Christian Obermayr

Average: 0.00, 0 Ratings

Effective time management

By Lothar Seiwert

Average: 0.00, 0 Ratings

Learn the Microsoft Outlook system, and let it help you set and manage your priorities, sharpen your focus, and combat distractions. Now you can manage your time with complete confidence.

Managing Your Time Business Action Guides

By Lothar J. Seiwert

Average: 0.00, 0 Ratings

Time is money

By Lothar Seiwert

Average: 0.00, 0 Ratings

1 heure pour mieux se connaitre et ameliorer son efficacite

By Lothar Seiwert

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.