Elena Calderon Alaez is an independent researcher of graffiti and street art. Flaneur nomad from Madrid. Graduated in Conservation and Restoration of Cultural Heritage at Complutense University of Madrid. Active member of the group ST.A.CO (Street Art Conservators at TEI of Athens) during a Erasmus scholarship in Greece (course 2014-2015). Final project on conservation and restoration of works by the street art artist Eltono in Madrid. In 2017 finished a Master’s degree in Conservation and Exhibition of Contemporary Art at UPV in Bilbao. Final project on interventionist/appropriationist Urban Artists in Spain. Currently part of the Street Art Cities community, where documents murals from cities like Bilbao, Stockholm, Reykjavík, Maribor and Tokyo. Active member of urban art / graffiti researchers group in Spain: Urban Art Observatory with which published various articles in the online magazine MURAL Street Art Conservation. Based in Tokyo from 2020. Currently Chief Curator of Totemo NFT platform.