Survey of Surveys - I. The largest compilation of radial velocities for the Galaxy M. Tsantaki, E. Pancino, P. Marrese, S. Marinoni, M. Rainer, N. Sanna, A. Turchi, S. Randich, C. Gallart, G. Battaglia and T. Masseron A&A, 659 (2022) A95 Published online: 11 March 2022 DOI: 10.1051/0004-6361/202141702