The Joker
The Joker is a serial killer and a super-villain, a dangerous madman who dresses like a clown and commits violent crimes. He is Batman’s greatest enemy, living in and terrorizing Gotham City, although he spends most of his time in Arkham Asylum.
First Appearance:  Batman #1 (1940)
Creators:  Bill Finger,  Bob Kane,  Jerry Robinson
Powers:  Genius-Level Intellect,  Indomitable Will
Limited Series
One-Shots
Comments
Batman #1 (1940) - First appearance of The Joker
Detective Comics #168 - The Man Behind the Red Hood
Batman #251
Detective Comics #475
Detective Comics #476
Batman: The Man Who Laughs #1 (2005)
Batman Confidential #7 – Alternate, non-canon story of Batman & Joker’s first meeting
Batman Confidential #8
Batman Confidential #9
Batman Confidential #10
Batman Confidential #11
Batman Confidential #12
Legends of the Dark Knight #65
Legends of the Dark Knight #66
Legends of the Dark Knight #67
Legends of the Dark Knight #68
Batman: The Long Halloween #1 (1996)
Batman: The Long Halloween #2
 Batman: The Long Halloween #3
 Batman: The Long Halloween #4
 Batman: The Long Halloween #5
 Batman: The Long Halloween #6
 Batman: The Long Halloween #7
 Batman: The Long Halloween #8
 Batman: The Long Halloween #9
 Batman: The Long Halloween #10
 Batman: The Long Halloween #11
 Batman: The Long Halloween #12
 Batman: The Long Halloween #13
The Killing Joke #1 (1988)
Batman #426 – A Death in the Family
Batman #427
Batman #428
Batman #429
Arkham Asylum: A Serious House on a Serious Earth #1 (1987)
Detective Comics #726
Joker #1 (2008)
Batman #663
Arkham Asylum: Madness #1 (2010)
Batman Vol. 2 #23.1 – Joker
Detective Comics Vol. 2 #1 (2011)
Read Death of the Family here.
Read Batman: Endgame here.