Proof
Dick Francis
The Five Red Herrings
Dorothy L. Sayers
Lord Peter Wimsey (7)
The R. Crumb Handbook
R. Crumb & Peter Poplaski
The Oxford Dictionary of Philosophy
Simon Blackburn
Meet Your Happy Chemicals: Dopamine, Endorphin, Oxytocin, Serotonin
Loretta Graziano Breuning