An ideas man in advertising for six years, Diego Agrimbau began his career as a scenario writer in 2003 participating in different projects, ranging from the erotic to science fiction and also working on books for children. La Bulle de Bertold, published by Albin Michel in 2005 with Gabriel Ippóliti as graphic artist, won the Utopiales prize in 2006. La Bulle de Bertold and its sequel La Grande Toile were in the French Graphic Book Critics' Association Top 50 in 2005 and 2006.
Concurrently he is a scenario writing teacher and a graphic book critic.
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Leonardo Pietro was born in 1980 in Buenos Aires. When he was eight he was sent into a church in his village to learn how to draw but made himself noticed through his early atheistic tendencies. At the end of his schooling he soon understood that he would not find a conventional job given his inability to "toe the line". He decided to turn to the arts and became a puppeteer. He travelled all through the country giving street shows and then at the age of 24, having had enough of walking, he returned to drawing. He speedily published his first graphic books in Argentina and the United States and then teamed up with Agrimbau to publish work in Italy.  They are now working together on publications in France.