She first appeared in Detective Comics 411 in May 1971. She is created by Dennis O'neil, Bob Brown and Dick Giordano.
I think her best portrayal out of the comics was in Batman the animated series. Her worst in Dark Knight Rises. Worst Portrayal in the comics has been by Grant Morrison in Batman Inc Saga. I loved that he had her take over her father's empire but he stripped any complexity she had as a character and his Talia is more of a caricature.
Lets Hope that she comes back better than ever hopefully with Damian's return.
My favorite fan art of her.