書しょ簡かん集しゅう

noun

collection of letters; collected letters

Refers to a published or compiled volume of correspondence, often by a notable figure.

• 漱そう石せきの書しょ簡かん集しゅうを読よんで、彼かれの人にん間げん性せいに触ふれた。

  I read Soseki's collected letters and got a sense of his humanity.