PING PONG 
Dialectic Street Vision
80 black and white photographs in 40 diptychs.
Prologue of the book by Alfredo Oliva, PhD in Psychology
in English, Spanish and Chinese
You won't stop looking from left to right, as if it were a ping pong match.
It is up to the viewer to find the communication between the two photographs.
It is a witty visual game
 
¨The photographs that make up this work can be considered to be a desencient of Cartier Bresson's defining moment, not only for their moments, but for the honest situations encountered in the everyday moments.