and Related Work.- 1 Introduction.- 2 Related Work.- Almost Optimal PIR.- 3 PIR with O(1) Query Response Time and O(1) Communication.- 4 Improving Processing and Preprocessing Complexity.- 5 Experimental Analysis of Shuffling Algorithms.- Generalizing the PIR Model.- 6 Repudiative Information Retrieval.- 7 Digital Rights Management for PIR.- Discussion.- 8 Conclusion and Future Work.- References.