Lu Yu (simplified Chinese: 陆羽; traditional Chinese: 陸羽; pinyin: Lù Yǔ; 733–804) or Lu Ji (陆疾), courtesy name Jici (季疵) was a Chinese tea master and writer. He is respected as the Sage of Tea for his contribution to Chinese tea culture. He is best known for his monumental book The Classic of Tea, also known as Ch'a Ching (simplified Chinese: 茶经), the first definitive work on cultivating, making and drinking tea.
See also Luk Yu (restaurant)
More information on the Wikipedia page [1]