The book "The Systemic Model Proposed for Brazilian Notarial Organizations" by Bianca de Melo Hartfil examines notarial activity in Brazil through the lens of system theory. It addresses the central research question of whether system theory can be applied to the Brazilian notarial function to develop an organizational model that improves the efficiency and effectiveness of notarial services. The author argues that a systemic model can help reduce complexity and enhance the effectiveness of services. The topic is comprehensively discussed in three chapters, starting with system theory and its relevance to law. A key aspect of the analysis is the observation and communication of information within organizations, which forms the basis for an innovative management model in the notarial field.