Leo to Life is a documentary about the work of Leonela Relys: Cuban teacher, Doctor of Pedagogy and international literacy advocate. Leo is the creator of the literacy method ''Yo, si puedo'', with which more than twenty million people around the world have been taught to read and write. The documentary wants to analyse the keys of illiteracy, its direct relationship with poverty, and to investigate the political illiteracy that affects more than 80% of the world's population.