7 books in series

Star Trek: Starfleet Kadetten

Star Trek: Starfleet Kadetten is a 7-book series with 7 released primary works first released in 1993 with contributions by Peter David, John Peel, Mel Gilden, Ted Pedersen, John Vornholt, Michael Jan Friedman, Diana G. Gallagher, Brad Strickland, and Barbara Strickland.

Worf's First Adventure
Prisoners of Peace
The Pet
Capture the Flag
Die verschwundene Besatzung
Star Trek: Starfleet-Kadetten. Arcade / Diana G. Gallagher.
Starfall