Discworld - Industrial Revolution is a 6-book series with 6 primary works first released in 1990 with contributions by Terry Pratchett.
1990 • 268 Readers • 404 pages • 3.8
1995 • 231 Readers • 442 pages • 4.1
2003 • 258 Readers • 416 pages • 4.1
2004 • 415 Readers • 422 pages • 4.4
2007 • 243 Readers • 475 pages • 4.2
2013 • 185 Readers • 374 pages • 3.7