He began his career in photography in the 1980s and since then has participated in around two hundred exhibitions in different countries. He carries out personal projects, which are presented in exhibitions and publications, but he has also worked as a photojournalist for Folha de São Paulo.
Cities are the focus of his images and are often captured from above, as in the “Aéreas” series. He has participated in more than 200 exhibitions in more than 20 countries, including: "Nous les Arbres", Fondation Cartier pour l'art contemporain, Paris (2019); "Civilization:The Way We Live Now", National Gallery of Victoria, Melbourne, Australia and UCCA Center for Contemporary Art, Beijing, China (2019) and "Past/Future/Present: Contemporary Brazilian Art from the Museum of Modern Art, São Paulo", Phoenix Art Museum, Phoenix, Arizona, (2017);
Cássio Vasconcellos has published 14 books, including: Abre-Alas (Ed. Madalena, 2018), Brasil Visto do Céu (Ed. Brasileira, 2017), Aeroporto (Ed. Madalena, 2015) and Noturnos São Paulo (Bookmark, 2002) and is part of the select group of the book “The World Atlas of Street Photography”, a book published by Thames & Hudson, England, and Yale, USA in 2014 and which brings together the series “Noturnos São Paulo”.
He has won several awards, such as the Conrado Wessel Art Award (2011) and the São Paulo Association of Art Critics (APCA - 2002), for the best exhibition of the year with the show “Noturnos São Paulo”. His images are part of several collections in Brazil and abroad, such as MASP - Museu de Arte de São Paulo (São Paulo, Brazil), Bibliothèque Nationale (Paris, France) and Museum of Fine Arts (Houston, United States).