Martínez's work has explored the connections between, poverty, narcotrafic, organized crime, and how this affects on the communities in his native Guerrero in southern Mexico
He is trying to represent the relationship of absence and presence and this state of invisibility in a symbolic manner working with the concepts of pain, emptiness, absence, and forgetting .
Martínez is member of the Native agency; He is based in Guerrero Mexico
He received the Magnum Emergency Fund, Magnum On religión, and named one of the PDN´s 30 new and emerging photographers to watch 2017. In 2015 he was selected in the Joop Joop Swart Master Class Latinoamerica. Finalist in the Eugene Smith grant in 2015, 2016.
He was nominated to the Foam Paul Huf Award, the Prix Pictet and the Infinity award of the ICP.