The Tang Materia Medica was the first book.?

The Tang Materia Medica was not the first book on herbal medicines in China. The first known Chinese material medica is the Shen Nong Ben Cao Jing, attributed to the mythical figure Shen Nong. The Tang Materia Medica, compiled during the Tang Dynasty, expanded on earlier works and included a wider range of medicinal substances.