Cass Art is on a mission. Cass Art is committed to encouraging everyone to realise their creative talents by providing the worlds top quality materials at the guaranteed best prices. Cass Art not only partners with some of the leading art brands across the UK, including The National Gallery, The Royal Academy of Arts, National Galleries Scotland and Sky Arts, it also works with local galleries and art institutions.Cass Art is on a mission. Cass Art is committed to encouraging everyone to realise their creative talents by providing the worlds top quality materials at the guaranteed best prices. Cass Art not only partners with some of the leading art brands across the UK, including The National Gallery, The Royal Academy of Arts, National Galleries Scotland and Sky Arts, it also works with local galleries and art institutions.