1 Introduction

2 Model and Preliminaries
2.1 Information Theory
2.2 Interactive Information Complexity
2.3 The role of private randomness in information complexity

3 Additivity of Information Complexity

4 Direct Sum, Product, and the Interactive Compression Problem
4.1 Harder, better, stronger: From direct sum to direct product

5 State of the Art Interactive Compression Schemes
5.1 Barak et al.'s compression scheme
5.2 Braverman's compression scheme

6 Concluding Remarks and Open Problems