Lu Ji (261–303), courtesy name Shiheng (士衡), was a writer and literary critic of the Three Kingdoms period and Western Jin dynasty of Chinese history.
Lu Ji wrote much lyric poetry but is better known for writing fu, a mixture of prose and poetry. He is best remembered for the Wenfu 文賦 ("On Literature"), a piece of literary criticism that discourses on the principles of composition. Achilles Fang wrote of it:
The Wen-fu is considered one of the most articulate treatises on Chinese poetics. The extent of its influence in Chinese literary history is equaled only by that of the sixth-century The Literary Mind and the Carving of Dragons of Liu Hsieh. In the original, the Wen-fu is rhymed, but does not employ regular rhythmic patterns: hence the term "rhymeprose."
More Detail: http://en.wikipedia.org/wiki/Lu_Ji_(Shiheng)