Dungeon Master's Guide has 320 pages.
Dungeon Masters Adventure Log has 52 pages.
Dungeon Master's Guide II has 288 pages.
Masters of Time has 227 pages.
The Masters - novel - has 320 pages.
Masters of Evolution has 96 pages.
Masters of the Wild has 96 pages.
Dungeon Master's Kit has 272 pages.
Arkham's Masters of Horror has 443 pages.
The Guide has 220 pages.
"The Book of Challenges," a supplement for Dungeons & Dragons, contains 160 pages. It provides a variety of puzzles, traps, and other challenges for players and dungeon masters to incorporate into their game sessions.
The Dancing Wu Li Masters has 352 pages.
The Discontinuity Guide has 357 pages.