1. Introduction
Part I. Introduction into Basic Concepts
2. Collaborative recommendation
3. Content-based recommendation
4. Knowledge-based recommendation
5. Hybrid recommendation approaches
6. Explanations in recommender systems
7. Evaluating recommender systems
8. Case study - personalized game recommendations on the mobile Internet
Part II. Recent Developments
9. Attacks on collaborative recommender systems
10. Online consumer decision making
11. Recommender systems and the next-generation Web
12. Recommendations in ubiquitous environments
13. Summary and outlook