  CUPID is a proposed future tonne-scale bolometric neutrinoless double beta
decay ($0\nu\beta\beta$) experiment to probe the Majorana nature of neutrinos
and discover Lepton Number Violation in the so-called inverted hierarchy region
of the neutrino mass. CUPID will be built on experience, expertise and lessons
learned in CUORE, and will exploit the current CUORE infrastructure as much as
possible. In order to achieve its ambitious science goals, CUPID aims to
dramatically reduce the backgrounds in the region of interest introducing a
high efficiently $\alpha$/$\beta$ discrimination techniques, also demonstrated
by the CUPID-0 and CUPID-Mo experiments, and using a high transition energy
double beta decay nucleus, $^{100}$Mo. This document describe the main concepts
related with the design of the CUPID experiment and indicates the projected
sensitivities and the global scientific goal of the experiment.
