chapter 1 Introduction -- chapter 2 Data -- chapter 3 High-Level Principles -- chapter 4 Looking for Risk – Prediction and Anomaly Detection -- chapter 5 Looking for Similarity – Clustering -- chapter 6 Looking Inside Groups – Relationship Discovery -- chapter 7 Discovery from Public Textual Data -- chapter 8 Discovery in Private Communication -- chapter 9 Discovering Mental and Emotional State -- chapter 10 The Bottom Line.