As interventionists in a group, we went to the streets to collect NYC footprints. We invited people to join us writing where they are from and to where they were going.
Then we collected their shoeprints as identity traces on this anonymous cause, connecting their different backgrounds and their story as they are passing through NYC.  In the end we compiled all these footprints in a collection book manually printed and binded.
Page Sample - From: Brooklyn  Going to: The Top
From: Sydney: Australia  To: Cali: Colombia
Cover Box
Open Box with book, stamp and inkpad.
NYC Department of Footprints Stamp and Inkpad.
Printed Project Statement 
Story note from a participant.
Step: Ahead NYC Video - Done in Madison Square Park 
We also developed a free online version of the book, downloadable and shareable.