Lionel Messi is a mesmerising talent who has continued to astound the world of football ever since assuming his role at the heart of a star-studded Barcelona side in 2004. Overcoming a career-threatening growth hormone deficiency, he has won almost everything there is to win, including an unprecedented four FIFA Ballons d'Or. Luca Caioli draws on numerous exclusive testimonies to tell Messi's story, including his parents and extended family, his coaches, those who have played alongside him and even Messi himself.