6 books in series

Doona

Doona is a 6-book series with 6 primary works first released in 1969 with contributions by Anne McCaffrey, Jody Lynn Nye, C. J. Cherryh, Arthur C. Clarke, David Drake, Robert A. Heinlein, M.J. Engh, A.E. van Vogt, P.J. Beese, Cordwainer Smith, Greg Bear, Fredric Brown, S.M. Stirling, Fritz Leiber, Ursula K. Le Guin, Todd Hamilton, and Judith R. Conly.

#1
Decision at Doona

#1 of 3 in Doona

1969 • 16 Readers • 260 pages • 3.2

#2
Crisis on Doona

#2 of 3 in Doona

1992 • 5 Readers • 480 pages • 2.5

#3
Treaty at Doona (Doona, #3)

#3 of 3 in Doona

1994 • 4 Readers • 342 pages • 1

The Fleet

3 Doona

1988 • 2 Readers • 280 pages

The Girl Who Heard Dragons

#8.5 of 22 in Pern

1985 • 25 Readers • 352 pages • 3.8

Cats in Space...and Other Places

7 Brainship

1992 • 5 Readers • 407 pages