The Lobby Club science forum is an arena for science and nonfiction books and their authors. The last Tuesday of each month is hosted by a different author/researcher/scientist, with topics ranging over all aspects of life, society, politics and culture. This time, we study occultism in the work of Finnish artists Akseli Gallen-Kallela, Pekka Halonen and Hugo Simberg. The Lobby Club science forum is hosted by the Vastapaino publishing company.