Geraldo Magela Pereira is a Civil Engineer, graduated from the Brasilia University (July, 1974), with 45 years of experience in hydroelectric powerplants projects (HPPs). He has received a Master's Degree in Civil Engineering and Civil Defense Protection at the Fluminense Federal University, Niteroi - Rio de Janeiro State (2017). He has worked in the geotechnical and hydraulic areas, including studies on hydraulic models, arrangements and plan-coordination and direction of projects, in its various phases: Inventory Studies, and Feasibility Studies, along with Basic Projects and Executive Projects. He has also worked in the commercial area between 1998 and 2012, developing business for the implementation of projects in EPC Contracts. He published one paper in the XVI ICOLD of San Francisco (USA) in 1988, about the Historic Food During the 2nd Phase of Tocantins River Diversion for the Construction of Tucurui HPP , Q. 63, R. 2, and several papers in Brazilian seminars of large dams. He also published three books in Portuguese language: Hydroelectric Power Plants Design Step by Step in 2015, Spillways Design Step by Step in 2016 and Accidents and Ruptures of Dams in 2018. He published the book Spillways Design Step by Step again in 2020 in English language.