The author was first interested in Nongam obtaining his prose collection, Nongamjip((農巖集) in early 1960s. A study of Kim Ch’ang-hyŏp already have been published. However, it focused only on poem of Sajang(詞章) and was a little bit incomplete because of being issued with other writers. This book examines widely ranging from ideology to studying and literature with consideration of biographical viewing. In terms of descriptive way, author tried to access fact based on archives and not to describe expatiation.