Light sterile neutrino oscillation searches

International audience; Sterile neutrino mass scale is a free parameter. Thus, sterile neutrino might exist within the energy range from several eV to thousands of GeV. Heavy steriles, with energies between keV and GeV, are motivated by Grand Unified Theory and might explain Universe evolution and baryon asymmetry, they will not be discussed here.This review is focused on light nsterile which energy is around eV. Light sterile neutrino searches were motivated by anomalies such as LSND, Gallium and reactor antineutrino anomaly. Summary of anomalies is presented here. Major part of the review is dedicated to experimental results obtained with the recent very short baseline reactor experiments such as ratios of spectra at different baselines, exclusion plots. General conlusion and future prospects end this review.