The Line of Beauty by Alan Hollinghurst

The eponymous line of beauty is the s-curved line called the ogee. It appears several times in this novel in relation to art and architecture and to beauty in the abstract. The son of a British MP has graduated from Oxford and invited a college friend to live in the family home. The young people are beginning to find their way in the greater world of London and its suburbs. There is the usual British class consciousness and much graphic gay sex in this novel which won the Man Booker Prize. A good read.