Introduction.- Part 1: Advances in Legacy Technologies.- Advances in Fingerprint Technology.- Recognition-based on Eye Biometrics Iris and Retina.- 3D Hand Geometry Recognition.- Fundamentals and Advances in 3D Face Recognition.- Part 2: Emerging Technologies.- Advances in Key Stroke Dynamics-based Security Schemes.- Behavioral Biometrics Based on Human-Computer Interaction Devices.- Continuous Authentication Using Writing Style.- Facets and Promises of Gait Biometrics Recognition.- Online Signature-based Biometrics Recognition.- EEG-based Biometrics.- Part 3: Hybrid Technologies.- Multimodal Biometrics Invariant Fusion Techniques.- Biometrics Based on Healthcare Sensors.- Biometric Authentication for Wearables.- Cognitive Biometrics for User Authentication.- Finger Knuckle based multi-biometrics authentication systems.- Part 4: Enabling Technologies.- Leveraging Cloud-based Resources for Automated Biometric Identification.- Automated Biometric Authentication with Cloud Computing.- Biometrics Security and Internet of Things.- Part 5: Technology and Society.- Protecting the Integrity of Elections using Biometrics.- Ethical, Legal, and Social Implications of Biometrics Technologies.- Conclusion.