From Products to Services 
Exactly How to Sell 
Ganzheitliche Marketingkommunikation im Internet 
Be Your Own Guru 
Make Your First Million 
From Analysis to Evaluation 
Creativity in Virtual Teams 
The Blended Learning Book 
Outsourcing Training and Development 
Training the Active Training Way 
The Trainer′s Handbook 
Nonprofit Boards That Work 
Creating Philanthropic Capital Markets 
Cause Marketing for Nonprofits 
Revolution in the Mailbox 
The Law of Fundraising 
The Business of Consulting 
Beating the 24/7 
Excellence in Warehouse Management 
Dictionary of e-Business 
Power Markets and Economics 
Security and Environmental Change 
Managing Projects in Organizations 
Crash-Management in Projekten 
Creating a Mentoring Culture