In this lecture series, we are very happy to have Professor Yoshitaka Itow from Nagoya University. He is an expert in the experimental neutrino physics working for, most notably, Super Kamiokande, K2K, and Hyper Kamiokande. He is going to tell us about various experimental efforts using neutrinos. The lecture series is sponsored by Chung-Ang University BK21+ FOUR program and Chung-Ang University High Energy physics center.