The Professional Master's in History Teaching is a Brazilian networked postgraduate program coordinated by the Federal University of Rio de Janeiro (UFRJ) and funded by resources from the Basic Education Public Network Evaluation Program (PROEB), a Brazilian governmental program encouraging research. It currently involves 39 universities and teacher training centers distributed across all regions of Brazil. Its primary objective is the stricto sensu continuing education of teachers working in the public basic education system, specifically in the field of History. With ProfHistória, there has been a significant increase in research on History Teaching, resulting in the publication of hundreds of master's dissertations produced by teacher-researchers working in Basic Education. In this paper, we seek to analyze specifically the dominant themes in the dissertation productions of ProfHistória at the Brazilian Federal University of Pernambuco, focusing on the cohorts of 2016, 2018, and 2019. We analyze titles, abstracts, and keywords, employing Content Analysis, following Bardin's perspective, as the method for data treatment and analysis. Among the works of the three cohorts analyzed, some recurring themes stand out, such as Heritage Education/Local History/Memory Spaces, with a total of 10 dissertations, followed by the theme/category of 'Ethnic-Racial Issues,' with a total of 9 dissertations.