Marsilio Ficino
Marsilio Ficino, born in Florence in 1433, was one of the greatest exemplars of the Renaissance as a rebirth of classical learning. Ficino was the leader of the Florentine Platonic Academy and translator of many neo-Platonic and Hermetic works, including at the urging of Cosimo de Medici, the Corpus Hermeticum.
The Book of Life is not a translation, but an original work by Ficino written as an introductory guide to the practical application of esoteric knowledge. The work is mainly focused not on the soul or body, but on the spirit, with the first part discussing physical health, the second prolonging life, and the third celestial phenomena.