This book presents the definition of legal psychology as an area of specialization within general psychology and some of the applied fields that constitute the work of the professional who is concentrating on this area of expertise. Its objective is to present, indirectly, a different approach to the forensic one, which seeks to clarify, both to the expert and to the layman, that judicial court is not the only scene in which legal psychologists can work. The chapters correspond to academic products that illustrate the lines of research that have been developing in parallel with the exercise of the law and the function of justice management, related to intervention or approaching victims, criminals, witnesses and people in judicial conciliation processes, as well as intervention with children and adolescents in vulnerable social and family conditions to contribute to the restoration of their rights.