Thai Legal History: From Traditional to Modern Law (the “Book”) serves as an excellent academic tool for a reader desiring to a gain a deeper understanding of the constitutional status and roles of the King of Thailand, impacts of coups d’état on the Thai legal system, influence of foreign laws on moderation of the legal system, Buddhism, and legal consciousness in a modernised Thai legal system. As a law lecturer and legal researcher, I found that this Book, as highlighted by Andrew Harding in Chapter 1, meticulously reveals the origin and evolution of laws and concepts beyond written law in the pre-modern time—the old Siam—and later.