Kossoff's principal subjects are his immediate family and friends and the parts of London which he knows best. In the 1960s he set up a studio in Willesden, north London and in 1967 a swimming pool opened close by. He began taking his son there to teach him to swim, and the pool and its space provided him with a new subject. He made four large paintings of the pool between 1969 and 1972 of which this is one. All are distinguished by a lightness of touch and a sense of movement, noise and space.