An icon is a symbol equally incomprehensible in all human languages An icon is a symbol equally incomprehensible in all human languages. There's a reason why humans invented phonetic languages. Jef Raskin, Steve Jobs iconographysymbols
The Sciences of the Artificial A Book by Herbert Simon mitpress.mit.edu Large combinatorial spaces
Large combinatorial spaces For the theory of design is that general theory of search through large combinatorial spaces. The rational model of design