Preface -- Introduction -- Regulation of the Papillomavirus E6 and E7 Oncoproteins By the Viral E1 and E2 Proteins -- The Control of Human Papillomavirus Transcription -- Transcriptional Regulation of HIV -- Role and Mechanism of Action of the HIV-1 Rev Regulatory Protein -- Posttranscriptional Control: A General and Important Regulatory Feature of HIV-1 and Other Retroviruses -- Posttranscriptional Regulation of Papillomavirus Gene Expression -- Questions About RNA Structures in HIV and HPV -- Sequence Redundancy in Biopolymers: A Study on RNA and Protein Structures -- Plurality in HIV Genetics -- Combinatorial Approaches to Inhibiting the HIV Rev-RRE Interaction -- States, Trajectories, and Attractors: A Genetic Networks Perspective of Viral Pathogenesis -- Some Reflections on Complexities in Understanding Virus Biology