Book 1
Halo: The Fall of Reach
Eric Nylund
Book 2
Halo: The Flood
William C. Dietz
Book 3
Halo: First Strike
Eric Nylund
Book 4
Halo: Ghosts of Onyx
Eric Nylund
Book 5
Halo: Contact Harvest
Joseph Staten
Book 6
Halo: The Cole Protocol
Tobias S. Buckell
Book 7
Halo: Evolutions
Various Authors
Book 8
Halo: Cryptum
Greg Bear
Book 9
Halo: Primordium
Greg Bear
Book 10
Halo: Silentium
Greg Bear