Nihongo Notes is a 7-book series with 7 primary works first released in 1977 with contributions by Osamu Mizutani and Nobuko Mizutani.
1977 • 1 Reader • 160 pages
1979 • 1 Reader • 160 pages
1981 • 1 Reader • 159 pages
1983 • 1 Reader • 165 pages
1990 • 1 Reader • 180 pages