Ramona Quimby is a 8-book series with 8 primary works first released in 1955 with contributions by Beverly Cleary and Alan Tiegreen.
1955 • 53 Readers • 183 pages • 3.8
1977 • 20 Readers • 160 pages • 3.9
1979 • 17 Readers • 224 pages • 4.3
1981 • 41 Readers • 190 pages • 4.1