In 2018 solar physics and neutrino research celebrated various historical highlight events. Among them were 80 years of the paper by Hans Bethe discussing solar fusion cycles as energy source of stars, the first results from the Homestake chlorine experiment celebrating 50 years as well as the discovery of neutrino oscillations 20 years ago by Super-Kamiokande. Since the last International Solar Neutrino Conference in 1997, solar neutrino detection was recognized by two Nobel Prizes, given to Raymond Davis Jr. (2002) and Arthur McDonald (2015).The present proceedings volume is based on the...