Part I. Total Solar Eclipse of 2019; Part II. New Observational Diagnostics of Solar, Stellar and Interstellar Magnetic Fields; Part III. Progress in Understanding the Solar/Stellar Interior Dynamics and Dynamos; Part IV. Stellar Rotation and Magnetism; Part V. Role of Magnetic Fields in Solar and Stellar Variability; Part VI. Star-Planet Relations; Part VII. Formation, Structure and Dynamics of Solar and Stellar Coronae and Winds; Part VIII. Mechanisms of Flaring and CME Activity on the Sun and Stars; Part IX. Surface Magnetic Fields of the Sun and Stars; Part X. Observations of Solar Eclipses and Exoplanetary Transits.