Francis Bacon is considered one of the most important painters of the 20th century. A major exhibition of his paintings at the Royal Academy of Arts in 2020 explores the role of animals in his work - not least the human animal.

Having often painted dogs and horses, in 1969 Bacon first depicted bullfights. In this powerful series of works, the interaction between man and beast is dangerous and cruel, but also disturbingly intimate. Both are contorted in their anguished struggle, and the erotic lurks not far away: "Bullfighting is like boxing," Bacon once said. "A marvellous aperitif to sex." Twenty-two years later, a lone bull was to be the subject of his final painting.

In this fascinating publication - a significant addition to the literature on Bacon - expert authors discuss Bacon's approach to animals and identify his varied sources of inspiration, which included wildlife photography and the motion studies of Eadweard Muybridge. They contend that, by considering animals in states of vulnerability, anger and unease, Bacon was able to lay bare the role of instinctual behaviour in the human condition.