Volume 3, No 1 of the Acta Astrophysica Taurica contains proceedings of the Crimean-2021 AGN Conference Galaxies with Active Nuclei on Scales from Black Hole to Host Galaxy dedicated to the E.A. Dibai's 90th anniversary, held from 13 to 17 September 2021, and proceedings of the all-Russian astronomical conference with international participation Magnetism and activity of the Sun and stars - 2021 held from August 31st to September 3d, 2021 in Nauchny. The collection of papers intended for specialists in astronomy and astrophysics.