A Requiem for Homo Sapiens is a 4-book series with 4 primary works first released in 1988 with contributions by David Zindell.
1988 • 34 Readers • 552 pages • 4.1
1992 • 11 Readers • 660 pages • 3
1995 • 5 Readers • 704 pages • 3.5
1998 • 3 Readers • 800 pages • 4