As Professor of Painting at the Royal Academy he gave a memorable series of lectures to the students of the Schools, published as Six Lectures on Painting (1904) and Aims and Ideals in Art (1906).
Clausen was an official war artist during World War I.
Clausen era um artista oficial de guerra durante a 1a Guerra Mundial.
Clausen era uma artista oficial de guerra durante a 1a Guerra Mundial.