UNEXPECTED ART

just arrived... 

Unexpected Art
Serendipitous Installations, Site-Specific Works, and Surprising Interventions

ed: Chronicle Books

Edited by Jenny Moussa Spring, Preface by Florentijin Hofman, Introduction by Christian L. Frock, Preface by Florentijn Hofman

more info here:
http://www.chroniclebooks.com/titles/art-design/art-design-reference/unexpected-art.html