Public Health Minister Dr. Piyasakol Sakolsatayadorn revealed that the book is intended to provide information on alternatives to modern overseas drugs. The book was also published by the Department of Medical Sciences in honor of His Majesty the late King Bhumibol Adulyadej. The reference book describes the medicinal properties of 70 types of Thai herbs. The department spent two years studying and compiling information on these plants in the book. The most popular herbs used by Thais are turmeric, green chiretta, and centella. Manufacturers can also use this book as a reference to produce herbal products. The use of herbal medicines has become so popular that the herb industry generates 14 billion baht per year. To promote the use of Thai herbs, the government has developed the first national herb development plan for 2017-2021.