Roberto Trotta is a theoretical cosmologist in the astrophysics group of Imperial College London. He has held research positions at the University of Geneva and the University of Oxford, as well as visiting positions at the African Institute for Mathematical Sciences in Cape Town, the Institut d'Astrophysique de Paris, and the University of California at Santa Barbara. One of the world's leading figures in'astrostatistics,' a new discipline focusing on the use of statistical methods to solve problems in cosmology and astrophysics, he has published more than fifty scientific papers, contributed to two books and received numerous awards for his research, including the Michelson Prize of Case Western Reserve University, the Lord Kelvin Award of the British Association for the Advancement of Science, and a Public Engagement Fellowship by the Science and Technology Facilities Council, UK. www.robertotrotta.com