The book "Secure Medical Data Transmission in Wireless Body Area Network" offers a comprehensive analysis of the security challenges associated with the transmission of medical data in wireless body area networks (WBAN). These networks are critical for modern healthcare, especially in emergencies and remote areas. The work highlights the implementation of elliptic curve cryptography (ECC) as a solution to ensure secure data transmission and user authentication, while also considering the limitations of health devices, such as energy and space constraints. Authors Shashi Kant Shankar and Anurag Singh Tomar present innovative approaches to ensuring data security and preventing replay attacks, making the book a valuable resource for professionals in the fields of medical technology and information security.