Basho's Letters is a study by the scholar and haiku poet Tomotsugu Muramatsu that examines Matsuo Basho's character and the world of haikai through his correspondence. It received the 4th Haijin Kyokai Criticism Award in 1985.

A critical study that reads Basho's life and circle of relationships through his letters.

A work of literary criticism tracing the lives of people connected to Masaoka Shiki. It turns to the haiku poets and figures around him to portray the relationships through which modern haiku took shape.

It reconsiders the course of modern haiku through the network of people gathered around Shiki.