In Rio, in 2008, in the Morro da Providência favela, JR produced one of his largest collages, as part of the Women Are Heroes project. A year later, he returned for a show at the Casa França Brasil and an installation on the Lapa arches.

In 2016, for the Rio Olympic Games, the artist plunged into a new and monumental visual experiment that would give rise to the Giants  : athletes perched on scaffolding expressing the beauty of sporting gestures, which JR now regards as his « craziest » work. It was also during the Olympics that JR produced his action, Inside Out  : hundreds of portraits pasted onto walls around the city celebrating humanity.

This book traces ten years of JR's actions in Brazil, a decade as prolific as it was spectacular, and which is continuing today with the Casa Amarela, a cultural centre for children set up at the top of the Morro da Prôvidencia.