Dino Boccaletti was Professor of Celestial Mechanics at the University of Rome “La Sapienza” from 1987 until his retirement, and was previously Professor in the Institution of Mathematics at the university. In addition to his teaching and supervisory responsibilities, Prof. Boccaletti conducted research in the fields of Physics of Elementary Particles, Theoretical Astrophysics, Theory of Gravitational Waves, Stellar Dynamics, Celestial Mechanics, and Mathematical Physics. He has published a number of papers in leading journals, including Nature, Physical Review D, and Astronomy & Astrophysics, and has acted as reviewer for various scientific journals. He is co-author, with G. Pucacco, of the two-volume Springer book Theory of Orbits, which is used for advanced courses in Celestial Mechanics and Stellar Dynamics at universities across the world.