Get an eyeful of Harley's greatest hits from comics including stories from BATMAN ADVENTURES #12 (Harley's first comics appearance!), BATMAN #613, GOTHAM CITY SIRENS #7, SUICIDE SQUAD #1, BATMAN #13, HARLEY QUINN #21, HARLEY QUINN AND THE SUICIDE SQUAD APRIL FOOL'S SPECIAL #1, and the two-page origin of Harley from COUNTDOWN #10