This edited book is a descriptive summary of challenges, methods using in Social IoT with various case studies with diverse authors across globe. This special issue is soliciting scientific research papers that can present a snapshot of the latest research status of SIoT.

Dr. Gururaj H L is currently working as Associate Professor, Department of Computer Science and Engineering, Vidyavardhaka College of Engineering, Mysuru, India. He holds a Ph.D. Degree in Computer Science and Engineering from Visvesvaraya Technological University, Belagavi, India in 2019. He is a professional member of ACM and working as ACM Distinguish Speaker from 2018. He is the founder of Wireless Internetworking Group (WiNG). He is a senior member of IEEE and lifetime member of ISTE and CSI. Dr. Gururaj received young scientist award from SERB, DST, and Government of India in December 2016. He has 9 years of teaching experience at both UG and PG level. His research interests include Block Chain Technology, Cyber Security, Wireless Senor Network, Ad-hoc networks, IOT, Data Mining, Cloud Computing and Machine Learning. He is an Editorial Board member of the International Journal of Block chains and Cryptocurrencies (Inderscience Publishers) and Special Editor of EAI publishers. He has published more than 75 research papers including 2 SCI publications in various international journals such in IEEE Access, Springer Book Chapter, WoS, Scopus, and UGC referred journals. He has presented 30 papers at various international Conferences. He has authored 1 Book on Network Simulators. He worked as reviewer for various journals and conferences. He also received Best paper awards at various National and International Conferences. He was honored as Chief Guest, Resource Person, Session chair, Keynote Speaker, TPC member, Advisory committee member at National and International Seminars, Workshops and Conferences.

Dr. Pramod H B is currently working as Associate Professor, Department of Computer Science and Engineering, Rajeev Institute of Technology, Hassan, India. He's Completed Ph.D. Degree in Computer Science and Engineering from SVU, India. He has 10 years of teaching experience at both UG and PG level. His research interests include Machine Learning, Wireless Senor Network, IoT, and Social IoT. He was published more than 15 research papers including 1 SCI publications in various international journals, Taylor and Francis and Wiley Book Chapter, WoS, Scopus, and UGC referred journals. And he was published in Govt of India Patent. He worked as reviewer for IEEE Transaction on Network Science & Engineering and Various Conference.

Mr. Gowtham M is currently working as Assistant Professor, Department of Computer Science and Engineering, NIE Institute of Technology, Mysuru, India. He's doing his research (Ph.D. Degree) in Computer Science and Engineering at Visvesvaraya Technological University. He has 6.5 years of teaching experience at both UG and PG level. His research interests include Network Security, Wireless Senor Network, Ad-hoc networks, IoT and Cloud Computing. He has published more than 30 research papers including 1 SCI publications in various international journals includes IEEE Transactions and Springer, Elsevier, Taylor and Francis and Wiley Book chapters

1. Internet of Lights: A Way to Energy-Ef¿cient Lighting Systems, 2. A Prototype of a Smart Phone-Controlled Lawn Mower Using Android App, 3. Intelligent Optimized Delay Algorithm for Improved Quality of Service in Healthcare Social Internet of Things, 4. Trust Management: Architecture, Components with Emerging Domains in SIoT, 5. Security Threats in SIoT, 6. Challenges and Solutions of Using Social Internet of Things (SIoT) in Healthcare and Medical Domains, 7. Social Aspects of D2D Communications in IoT for 5G and beyond Cellular Networks, 8. Real-Time Face Mask Detection and Alert System Using IoT and Machine Learning, 9. Social Content Distribution Architecture of SIoT: Applications, Challenges, Security, and Privacy Paradigm, 10. Ef¿cient and Secured IoT-Based Agriculture Wireless Sensor Network Using Swarm Optimization, 11. Review on Autonomous Vehicle and Virtual Controlled Delivery Truck System Using IoT, 12. IoT-Enabled Smart Parking to Reduce Vehicle Flooding, 13. IoT Device Discovery Technique Based on Semantic Ontology, 14. Women Safety and Monitoring System Using Geo-Fence, 15. Machine-Learning Approach to Predict Air Quality - A Survey, 16. Air Canvas - Air-Writing Recognition Model for Environmental and Socioeconomic Issues