Alberto P. Guimarães obtained his PhD from the University of Manchester, UK, and is a specialist in magnetism. Currently professor of physics at the Brazilian Center for Physical Research (CBPF) in Rio de Janeiro, he has been active in popularizing science for many years, for example as founder and one of the directors of the publishing house responsible for the magazine "Ciência Hoje" and its equivalent for children, "Ciência Hoje das Crianças" for the Brazilian Society for the Advancement of Science (SBPC).