The Complete Works of Japanese Literature includes "Jun'ichirō Tanizaki Collection," "Takeo Arishima Collection," "Yūzō Yamamoto Collection," "Yasunari Kawabata Collection," "Masuji Ibuse Collection," "Fumiko Hayashi Collection," "Kō Itō, Kyō Kumo Collection," "Kanoko Okamoto Collection," "Fumiko Enchi Collection," and "Yasushi Inoue Collection." The Modern Japanese Literature Museum includes "Ryūnosuke Akutagawa," "Osamu Dazai," and "Shōhei Ōoka." The Complete Works of Japanese Literature was mainly published in 1966. Price: 290 yen. The Modern Japanese Literature Museum was published in 1967. Price: 480 yen. Since all of these books are about 60 years old, they show significant signs of aging.