All Creatures Great and Small is a 7-book series with 7 primary works first released in 1970 with contributions by James Herriot.
1970 • 1 Reader • 312 pages • 4
1972 • 9 Readers • 229 pages • 4
1974 • 8 Readers • 256 pages • 5
1976 • 1 Reader • 240 pages • 4
1977 • 3 Readers • 4.5
1981 • 12 Readers • 373 pages • 4
1992 • 15 Readers • 374 pages • 5