Issue 4 of the Art of Conversation is inspired by the intimacy between an artist and their long-time collaborators.

English pop artist Sir Peter Blake with Paul Stolper, his friend and editions gallerist of 10 years, talk about the West Coat art scene of the 1960s, the celebrity artists of the era, the importance of clowns in art, and musical post boxes.

Billy Childish, the English poet, artist and musician famous for advocating amateurism and emotional expression, talks to his friend, gallerist and collaborator of 16 years Steven Lowe about the ups and downs of life - army humour, family and how to become a success in the art world without a plan.

Zhang Enli is one of the most famous Chinese artists in the world. He talks to Neil Wenman, the senior director of his gallerists Hauser and Wirth, with whom he has collaborated for nine years. They touch on Zhang's belief in Nature and the countryside and how the work he has recently installed at historic London store Fortnum & Mason was influenced by his recent stay in Scotland.

Robert Montgomery talks to his wife the filmmaker, poet and actress Greta Bellamacina about children, the importance of poetry education and love.

Up and coming artist Charles Godet Thomas talks to his friend the writer Matthew Turner about language, space and where on earth 'Like' came from.