This book provides comprehensive insights into the field of wireless sensor networks. It traces the progress of this field and highlights some of its key concepts and applications. Wireless sensor networks refer to the sensors which are used to monitor and collect data in order to save it in a central location. They have varied applications such as measuring environmental conditions like humidity, temperature, wind speed, or detecting air pollution, landslides, natural disasters, water quality, etc. This book will discuss in detail the various applications of WSNs and will provide in-depth knowledge of different techniques used in this area. The various studies that are constantly contributing towards advancing technologies and evolution of this field are examined in detail in this text. Students, scientists, engineers, researchers, etc. will benefit alike from this text