A smart city is a framework that aims to develop, deploy and promote sustainable development practices to address the growing challenges of urbanization. It is primarily composed of information and communication technologies (ICT). An intelligent network of connected objects and machines that transmit data using wireless technology and the cloud is essentially a big part of this ICT framework. It consists of cloud-based Internet of things (IoT) applications to help municipalities, enterprises and citizens make better decisions by receiving, analyzing and managing data in real-time. Citizens can pair devices and data with the physical infrastructure and services of the city which helps in cutting costs and improving sustainability. IoT can help communities improve energy distribution, consolidate trash collection, reduce traffic jams and even improve air quality. This book includes some of the vital pieces of work being conducted across the world, on various topics related to smart cities. There has been rapid progress in this field and its applications are finding their way across multiple industries. The book aims to equip students and experts with the advanced topics and upcoming concepts in this area.