Yoshimi Kusaba is an editor and the author of Eiga kantoku ha chuugakusei! (Director is a middle school student!) (Tokyo: Choubunsha, 2012), 100 en kara dekiru kokusai kyouryoku 4 5 6 (International cooperation activities on 100 yen, vols. 4, 5, 6), Chikyuu wo sukuu shigoto zen 6 kan (Jobs that save the world, all 6 vols.) (above Choubunsha titles), and Oshigoto shiriizu zukan (Jobs series encyclopedia) (Froebel-kan), and co-author of Kagaku ni sugaru na! – uchuu to shi wo meguru tokubetsu jugyou (Don’t just rely on science! – A special lesson on the universe and death) (Tokyo: Iwanami Shoten, 2013) and others. He has provided editorial and written contributions to works including Junia ban purojekuto X shiriizu (Junior version Project X series), NHK tameshitegatten shiriizu (NHK “Tameshitegatten” series) (both Choubunsha).