Abstract: The gravitational-wave detections provided by the LIGO-Virgo network of Advanced interferometers, had a significant impact in many fields of science: astrophysics, cosmology, nuclear physics and fundamental physics. Compact binary coalescence signals, the only type of signals detected so far, are only a small fraction of possible detectable gravitational waves. An interesting family of yet undetected signals, and the ones that I will consider in this talk, are the so-called continuous waves. The main sources of continuous signals are galactic, fast-spinning isolated neutron stars or potential dark matter candidates. In this talk, I will review some of the data analysis methods used for the search of these signals and discuss the latest results from Advanced detector data.