The Man Who Gave Away His Island by Ray Perman is the  biography of a remarkable man, John Lorne Campbell, who bought the Hebridean island of Canna and, with his American musician wife Margaret Fay Shaw, made it an international centre of Gaelic culture.
Ray fell in love with Canna on his first visit in 1977 when he went to interview Campbell about a campaign to save the island’s ferry service.
You can read more about the book on it’s own website: thecannastory.com and buy it from Birlinn or Amazon.