Part 1: General Considerations.- Chapter 1. Voice Attractiveness: Concepts, Methods, and Data.- Chapter 2. Prosodic Aspects of the Attractive Voice.- Chapter 3. The Vocal Attractiveness of Charismatic Leaders.- Chapter 4. Vocal Preferences in Humans: A Systematic Review.- Part 2: Voice.- Chapter 5. What Does it Mean for a Voice to Sound "Normal"?.- Chapter 6. The Role of Voice Evaluation in Voice Recall.- Chapter 7. Voice, Sexual Selection and Reproductive Success.- Chapter 8. On Voice Averaging and Attractiveness.- Part 3: Prosody.- Chapter 9. Attractiveness of Male Speakers: Effects of Pitch and Tempo.- Chapter 10. "The Contribution of Amplitude Modulations in Speech to Perceived Charisma".- Chapter 11. "Dress to Impress? On the Interaction of Attire with Prosody and Gender in the Perception of Speaker Charisma".- Chapter 12. "Birds of a feather flock together but opposites attract! On the interaction of f0 entrainment, perceived attractiveness, and conversational quality in dating conversations".- Part 4: Databases.- Chapter 13. Acoustic Correlates of Likable Speakers in the NSC Database.- Chapter 14. "Ranking and Comparing Speakers based on Crowdsourced Pairwise Listener Ratings".- Chapter 15. "Multidimensional Mapping of Voice Attractiveness and Listener's Preference: Optimization and Estimation from Audio Signal".- Part 5: Technological applications.- Chapter 16. "Trust in Vocal Human-Robot Interaction: Implications for Robot Voice Design".- Chapter 17. "Exploring Verbal Uncanny Valley Effects with Vague Language in Computer Speech".