Language and Human Nature Tetralogy is a 4-book series with 4 primary works first released in 1994 with contributions by Steven Pinker and Au Steven Pinker.
1994 • 4 Readers • 546 pages • 4
2002 • 12 Readers • 794 pages • 4.3
2007 • 14 Readers • 499 pages • 2.7