“I am Panagiotis Giannakis, as many times as I fell, as many times as I got up. I am an athlete, coach, father, grandfather, husband, son. I am both vulnerable and invulnerable.” With this phrase begins the stormy, in terms of revelations, the autobiography of Panagiotis Giannakis, published by Diptra, entitled “Vulnerable invulnerable”, which was based on a series of recordings and discussions with journalist Pantelis Vlachopoulos.