I expect most answers would be science fiction, but I wouldn't specifically limit it to such.
2021 • 2,538 Readers • 496 pages • 4.5
1961 • 482 Readers • 232 pages • 3.7
2002 • 625 Readers • 281 pages • 4.3
#4 of 9 in Hainish Cycle
1969 • 933 Readers • 267 pages • 4
1957 • 39 Readers • 250 pages • 3.8