Book excerpt: The demand for integration of smart devices into our daily lives has led to a pressing challenge - the effective design and optimization of antennas for wearable and implantable applications. As our reliance on interconnected devices grows, so does the need for antennas that transcend their conventional roles and adapt to the diverse, dynamic needs of users. Addressing these challenges is vital, considering the unique demands imposed by this technology, ranging from size constraints to energy efficiency, biocompatibility, and signal integrity. Design and Optimization of Wearable, Implantable, and Edible Antennas, is an innovative work that confronts these challenges head-on. In this exploration, the book sheds light on the evolving landscape where electromagnetic research intersects with the demands of human life. As antennas seamlessly weave into attire, revolutionize healthcare through implants, and even find their place in edibles, this book serves as a guide for academic scholars, researchers, engineers, and students navigating the intricate terrain of antenna engineering.