Young Stellar Populations in M31

We present a comprehensive study of star-forming regions in the nearest large spiral galaxy M31. We use GALEX far-UV and near-UV imaging to detect the radiation from young massive stars and trace the recent star formation across the galaxy. The far-UV and near-UV flux measurements, combined with ground-based data for estimating the reddening by interstellar dust, are used to derive ages and masses of the star-forming associations. The GALEX imaging, combining deep sensitivity and entire coverage of the galaxy, provides a complete picture of the recent star formation in M31 and its variation with environment throughout the galaxy.