63 books in series
Halo
Halo is a 58-book series with 63 primary works first released in 2001 with contributions by Eric S. Nylund, William C. Dietz, Alexandra Adornetto, Joseph Staten, Tobias S. Buckell, Frank O'Connor, Jonathan Goff, Robert McLees, Karen Traviss, Kevin Grace, Eric Raab, Fred Van Lente, Tessa Kum, Jeff VanderMeer, B.K. Evenson, Robt McLees, Greg Bear, John Shirley, Matt Forbeck, Peter David, Troy Denning, James Swallow, Kelly Gay, Christie Golden, Morgan Lockhart, John Jackson Miller, Brian Reed, Cassandra Rose Clarke, Lee Hammock, Jay Faerber, Brett Lewis, Duffy Boudreau, Chris Schlerf, and Brian Michael Bendis.
| #1 |  Halo: The Fall of Reach
| 4 | 59 reads | ||
| #2 |  Halo
| 3.08 | 56 reads | ||
| #3 |  Hemel
| 4.4 | 8 reads | ||
| #4 |  Halo: Ghosts of Onyx
| 4 | 8 reads | ||
| #5 |  Halo : Contact Harvest
| 3.67 | 18 reads | ||
| #6 |  Halo: The Cole Protocol
| 3.91 | 19 reads | ||
| #7 |  Halo Halo: Evolutions - Essential Tales of the Halo Universe
| 4 | 3 reads | ||
| #7.1 |  Halo: Evolutions Volume I
| 0 | 0 reads | ||
| #7.2 |  Halo: Evolutions, Volume II
| 0 | 0 reads | ||
| #8 |  Halo Cryptum
| 3.63 | 16 reads | ||
| #9 |  Halo: Primordium
| 3.67 | 7 reads | ||
| #10 |  Halo Halo: Silentium: Book Three of the Forerunner Saga
| 4.5 | 3 reads | ||
| #11 |  Halo Kilo-Five Trilogy
| 4 | 3 reads | ||
| #12 |  Halo Halo: The Thursday War: Book Two of the Kilo-Five Trilogy
| 3.8 | 5 reads | ||
| #13 |  Halo Halo: Mortal Dictata: Book Three of the Kilo-Five Trilogy
| 3.9 | 5 reads | ||
| #14 |  Halo: Broken Circle
| 3.75 | 7 reads | ||
| #15 |  New Blood
| 4.33 | 10 reads | ||
| #16 | Halo Halo: Hunters in the Dark
| 4.33 | 3 reads | ||
| #17 |  Halo: Saint's Testimony
| 4.2 | 5 reads | ||
| #18.1 |  Halo: Shadow of Intent
| 4.5 | 2 reads | ||
| #19 |  Halo: Fractures - Extraordinary Tales from the Halo Canon
| 4 | 1 read | ||
| #20 |  Halo: Smoke and Shadow
| 4.75 | 5 reads | ||
| #21 |  Halo: Envoy
| 4.4 | 6 reads | ||
| #23 |  Halo: Legacy of Onyx
| 4.5 | 2 reads | ||
| #25 |  Halo Halo: Silent Storm: A Master Chief Story
| 4.33 | 3 reads | ||
| #27 |  Halo: Oblivion: A Master Chief Story
| 4 | 1 read | ||
| #28 |  Halo: Shadows of Reach
| 4 | 2 reads | ||
| #28 |  Halo: Shadows of Reach: A Master Chief Story
| 5 | 1 read | ||
| #29 |  HALO: Battle Born
| 0 | 0 reads | ||
| #30 |  Halo: Meridian Divide
| 0 | 0 reads | ||
| #30 |  Halo: Battle Born Meridian Divide
| 0 | 0 reads | ||
| #31 | Halo Halo: Point of Light
| 5 | 1 read | ||
| #32 |  Halo Halo: Divine Wind
| 5 | 1 read | ||
| #33 |  Halo: The Rubicon Protocol
| 3.67 | 3 reads | ||
| #35 |  Halo: Epitaph
| 4.25 | 2 reads | ||
 Halo: Escalation #19
| 0 | 0 reads | |||
 Halo: Escalation #20
| 0 | 0 reads | |||
 Halo: Escalation #21
| 0 | 0 reads | |||
 Halo: Escalation #22
| 0 | 0 reads | |||
 Halo: Escalation #23
| 0 | 0 reads | |||
 Halo: Escalation #24
| 0 | 0 reads | |||
 Halo: Initiation #1
| 0 | 0 reads | |||
 Halo: Initiation #2
| 0 | 0 reads | |||
 Halo: Initiation #3
| 0 | 0 reads | |||
 Halo: Escalation #9
| 0 | 0 reads | |||
 Halo: Escalation #7
| 0 | 0 reads | |||
 Halo: Escalation #6
| 0 | 0 reads | |||
 Halo: Escalation #5
| 0 | 0 reads | |||
 Halo: Escalation #4
| 0 | 0 reads | |||
 Halo: Escalation #3
| 0 | 0 reads | |||
 Halo: Tales from Slipspace
| 0 | 1 read | |||
 Halo: Escalation #2
| 0 | 0 reads | |||
 Halo: Legacy Collection
| 0 | 1 read | |||
 Halo: Escalation #1
| 0 | 0 reads | |||
 Halo Graphic Novel
| 3 | 4 reads | |||
 Halo: Escalation #8
| 0 | 0 reads | |||
 Halo: Escalation #10
| 0 | 0 reads | |||
 Halo: Escalation #11
| 0 | 0 reads | |||
 Halo: Escalation #12
| 0 | 0 reads | |||
 Halo: Escalation #13
| 0 | 0 reads | |||
 Halo: Escalation #14
| 0 | 0 reads | |||
 Halo: Escalation #15
| 0 | 0 reads | |||
 Halo: Escalation #16
| 0 | 0 reads | |||
 Halo: Escalation #17
| 0 | 0 reads | |||
 Halo: Escalation #18
| 0 | 0 reads |