Andy Helfer
Books
Batman Black and White, Vol. 1
1998
ISBN 9781563894398
Batman Arkham: Poison Ivy
2016
ISBN 9781401264451
Further Adventures of The Joker, The
1990
ISBN 9780553285314
Batman: Featuring Two Face and the Riddler
1995
ISBN 9781563891984
DC's Greatest Detective Stories Ever Told
ISBN 9781779505941
Secret Origins (1986-1990) #18
Batman: The Caped Crusader, Vol. 3: The Penguin Affair
- No cover
Secret Origins (1986-1990) #40
Shadow Master Series Volume 2
2014
ISBN 9781606904992