Solar flares are the main sources of acceleration of energetic particles from the solar atmosphere through the Heliosphere to the circum-terrestrial Environment. At present, several space-born telescopes in collaboration with small, medium and large class telescopes provide plenty of data at the different wavelengths and resolutions, which allow us to study these phenomena in detail. In this review, I describe some of the recent results obtained in the international context by our Italian community concerning the study of the mechanisms at the base of the storage and release of free energy in solar flares. I highlight the main aspects which characterize two different approaches to the observation of the flares: the attempt to provide a further contribution to the physics of the processes involved by such events and the answer to the increasing request of forecasting in order to prevent the damage to the technological systems which permeate our life. Both approaches require a vision as complete as possible of the whole solar atmosphere and synergies among different methods of analysis.