'Few books change one's life; in 48 hours this has improved mine ... Anyone who wonders if they are living their lives as fully as they might will find ideas worth thinking about in this engaging, persuasive book.' -- The Sunday Times 'Dolan makes a persuasive case that happiness might really be simple. His book is a powerful reminder not to get caught up in overthinking things, but to focus instead on maximising what actually delivers joy ... and most of us would benefit from listening to him.' -- The Guardian 'Outstanding, cutting-edge, and profound. If you're going to read one book on happiness, this is the one.' -- Nassim Nicholas Taleb, bestselling author of The Black Swan and Antifragile