This page was last updated in June 2015. The information here is intended as an overview of key events and landmark group exhibitions; it is not meant to be comprehensive. However, if you see any crucial omissions or errors please feel free to contact support@prepostbooks.com. Among all the sources we have referred to, one that we particularly recommend is the interactive timeline and map published by the Museum of Modern Art, New York, on the occasion of the exhibition "Tokyo 1955–1970: A New Avant-Garde," held from November 2012 to February 2013.