Recent results in hadron spectroscopy from CMS.

The present report summarizes recent results on the heavy flavor spectroscopy at the CMS experiment obtained using data collected at the Large Hadron Collider during the 2015-2018 data taking with proton-proton collisions at centre-of-mass energy of 13 TeV: the results range from the observation of new structures in the di-charmonium mass spectrum to the observation of new decay modes of beauty baryons such as Ξb- and Λb0. [ABSTRACT FROM AUTHOR]