This book provides a comprehensive review and explores future research avenues on negative triangularity tokamak plasmas, a promising candidate for future fusion reactors. Unlike traditional configurations, these plasmas offer significant advantages in power exhaust control, making them a compelling alternative for sustainable energy solutions. Initially considered a speculative endeavor, recent breakthroughs have positioned negative triangularity as a viable solution, capturing the attention of the international fusion community. nbsp; Key concepts explored include the historical development of negative triangularity, theoretical predictions, and experimental results on magneto-hydrodynamic stability and turbulent transport.nbsp;The book delves into the confined and unconfined plasma regions, offering insights into the challenges and opportunities presented by this innovative configuration. With contributions from leading experts, this volume provides a thorough understanding of the potential of negative triangularity in future reactors. nbsp; Aimed at plasma scientists, from young researchers to seasoned professionals, this book serves as an essential resource for anyone interested in the cutting-edge developments in fusion energy. Whether you're a student entering the field or a researcher seeking the latest insights, this book offers a detailed and accessible exploration of a concept that could redefine the future of energy production.