The book is a collection of best selected research papers presented at the Fourth World Conference on Internet of Things: Applications & Future (ITAF 2024) organized by ITAF Research Lab and Global Knowledge Research Foundation in Cairo during October 9–10, 2024. It includes innovative works from researchers, leading innovators, business executives, and industry professionals to examine the latest advances and applications for commercial and industrial end users across sectors within the emerging Internet of things ecosphere. It shares state-of-the-art as well as emerging topics related to Internet of things such as big data research, emerging services and analytics, Internet of things (IoT) fundamentals, electronic computation and analysis, big data for multi-discipline services, security, privacy and trust, IoT technologies, and open and cloud technologies.