An all-time favourite: Michael Ende’s The Neverending Story. Cover art by Claudia Seeer [sic].
Noel Langley’s Hocus Pocus (Guild Books 1952).
Little Caesar by W.R. Burnett (Hodder 1968).
Nelson Algren’s The Neon Wilderness (Mayflower).
Hubert Selby Jr.’s Last Exit to Brooklyn, (Grove Press 1965). Think this is a Roy Kuhlman design.