Juan Manuel Santos was the President of Colombia from 2010 to 2018, and won the Nobel Peace Prize in 2016 “for his resolute efforts to bring an end to a civil war that has lasted for over 50 years, a war that has cost the lives of at least 220,000 Colombians and has caused the displacement of over six million inhabitants”. Former president Juan Manuel Santos will talk to the British journalist John Carlin about his new book: Un mensaje optimista para un mundo en crisis (2020).