Roger Penrose

 British mathematician

 



Ilusionario   http://www.ilusionario.es/INVESTIG/penrose.htm
Wikipedia   http://en.wikipedia.org/wiki/Roger_penrose
 

 


 Dale Purves

 American researcher



 
Homepage   http://www.purveslab.net/seeforyourself/
Ilusionario   http://www.ilusionario.es/INVESTIG/purves.htm
 



 


 John Pugh

 Trompe l´oeil muralist

 


Homepage   http://www.illusion-art.com/
Ilusionario   http://www.ilusionario.es/CONTEMPOR/john_pugh.htm
Books  "The murals of John Pugh"