The Forever War
Joe Haldeman
The Ghost Brigades: Old Man's War Book 2
John Scalzi
Old Man's War (2)
System Collapse
Wells, Martha
The Murderbot Diaries (7)
The Ghost of the Revelator
L.E. Modesitt
Ghost (2)
The Sea of Monsters
Rick Riordan
Percy Jackson and the Olympians (2)
The Lost Hero
The Heroes of Olympus (1)