Isis Rezende is a lawyer, a member of the Theosophical Society, an international speaker.
From 2014-2021, she served as President of the Inter-American Theosophical Federation. Member of the National Board of Directors of the Theosophical Society in Brazil, holds the posts of Director of the Library of Theosophical Literature in Brazil and President of the Alvorada Lodge in Brazil.
She has lectured in Brazil, Argentina, Chile, Uruguay, Paraguay, Bolivia, Peru, Ecuador, Colombia, Venezuela, Puerto Rico, Dominican Republic, Costa Rica, Nicaragua, Guatemala, Mexico, USA, Portugal, Spain, Norway, Belgium, Italy, India, Philippines, Indonesia, New Zealand and Singapore, Russia.