NuInt 18 is the 12th of a series of workshops devoted to the discussion of neutrino-nucleus interactions, in the broad kinematical regime relevant to astrophysical applications and accelerator-based searches of neutrino oscillations. The Workshop is meant to address a diverse audience---including nuclear theorists, neutrino experimentalists and developers of event generators---with the aim of fostering synergies and collaborative efforts. The program included reports from the ongoing and planned experiments, as well as a discussion of the most advanced theoretical models and their implementation in Monte Carlo simulations.