The LISA ITNs project started in Nov 2019 and entered in its 3rd years of successful research. The Academic Day is the occasion for the network to share and discuss about the projects, results and future objectives. During the meeting, the LISA ITN ESRs, the Affiliates, and the Work Package Leaders will present their works and the latest achievements. Moreover, the management and training work package leaders will give an overview of the next scientific and training objectives.