I haven't really been reading it much, I only opened it the other day to have a look through but ill post what's on the Index so you get a better idea of the stories it has in it.
Batman Vs the Joker
Batman #1 (1940)
The Riddle of the Missing Card
Batman #5 (1941)
The Joker Walks the Last Mile
Detective Comics #64 (1942)
Knights of Knavery
Batman #25 (1944)
Rackety-Rax Racket
Detective Comics #32 (1945)
The Man Behind the Red Hood
Detective Comics #168 (1951)
The Jokers Millions
Detective Comics #180 (1952)
The Crimes of Batman
World's Finest Comics #61 (1952)
Batman - Clown of Crime
Batman #85 (1954)
The Joker Jury
Batman #163 (1973)
The Joker's Five-War Revenge
Batman #251 (1973)
The Laughing Fish / The Sign of the Joker
Detective Comics #475-476 (1978)
To Laugh and Die in Metropolis
Superman #9 (1987)
A Death in the Family Chapter Four
Batman #427 (1988)
Going Sane Part Two: Swimming Lessons
Batman: Legends of the Dark Knight #66 (1994)
Fool's Errand
Detective Comics #726 (1998)
Endgame Part Three: Sleep in Heavenly Peace
Detective Comics #741 (2000)
Slayride
Detective Comics #826 (2007)
Faces of Death
Detective Comics #1 (2011)
But Here's the Kicker
Batman #15 (2012)