Henry Cassar, US Ambassador Gina Abercrombie-Winstanley, Mariz Cassar and Claire Pisani-Hughes at the presentation of The Life and Work of Lewis Wirth (1923-2010) & Helen Cavarra (1926-1978), their creative partnership, by Joseph Paul Cassar, history of art lecturer at Maryland University, US. Mariz Cassar, daughter of the two artists, presented the book to the US ambassador at the American embassy, Ta’ Qali.