In 1992 graduated from the Faculty of Journalism and Social Communication of the University of La Plata (Argentina).
Subsequently, and for several years, combined his work as a teacher of workshops on contemporary literature and visual semiotics in his faculty with collaborations in Argentine newspapers such as Clarin, El Día and travel magazines.
After long journeys through South America and Asia, he decided to settle in Barcelona where, in 2010, he co-founded the first street photography collective in Spain: Calle 35.
Exhibited his work in Barcelona, Las Palmas, Ciudad Real, Miami, Perpignan and Buenos Aires. He participated in photography festivals such as Ojo de Pez Photo Meeting Barcelona, Biennal Xavier Miserachs, DOCfield (Barcelona), Visa Off (Perpignan) and Miami Street Photography Festival.
At the beginning of 2017, together with a group of photographers, they gave life to QuitarFotos, which is expressed as a space for dialogue on visual documentary proposals.
Caballero currently collaborates with European magazines and photographic agencies. Teachs in workshops, conferences and writes about documentary photography in his blog: Miradas Cómplices.
Human Colors (Calle 35 / The Folio Club, Barcelona 2015)
Legenda Gerundae (The Folio Club.Barcelona 2018)
Ocre (Camera Infinita, 2019)