Prospero Fontana's designs are often obscure in their iconography, their significance as reflections of quattrocento symbols and hieroglyphics have been analysed by Edgar Wind in several sections of Pagan Mysteries in the Renaissance. These striking illustrations have been shown to have influenced Blake and Samuel Palmer after two centuries of neglect.
Achille Bocchi's Symbolicarum Quaestionum, the full book of wonders
with more of Fontanas illustrations here