Mitsumura raiburarī = Mitsumura library

"A graded reader for elementary students with stories, essays, and poems selected from various textbooks. Authors include the best of Japanese children's writers: Matsutani Miyoko, Chiba Shōzō, Imae Yoshitomo, Ogawa Mimei ... Vols. 1-5 are designed for students with a grade 2 reading level. Vols. 6-11 are designed for students with a grade 4 reading level. Vols. 12-17 are designed for students with a grade 6 reading level. People's names and more difficult words have furigana provided. Information about the authors, the textbook that the piece appeared in, and critical appreciation are included in each volume."