The evolution of the SN 2017iuk associated with GRB 171205A during its first 30 days is presented and discussed. GRB 171205A is the third most nearby GRB-SN ever known, being located at z = 0.0368. This allowed us to follow-up with an almost daily cadence its photometric and spectroscopic evolution with several facilities located world-wide. Broad-line features at high-velocities, typical of GRB-SNe, have been observed in the first days of the SN emission.. Early results on the SN spectral modelling will be also discussed. We also present the evidences of a thermal-like component, observed in the very early emission (t < 1 day) of the GRB-SN, and rapidly cooling from X-rays to optical frequencies.