Petar Atanačković from Novi Sad sent us a list of recommended readings on the theme of religion ...

             Recommended readings: 

• Wilhelm Reich, Masovna psihologija fasizma - Massenpsychologie des faschismus
• Wilhelm Reich, Spolna revolucija - Die sexuelle revolution
• Karl Marx, Prilog jevrejskom pitanju - Zur Judenfrage
  
• Karl Marx, Prilog kritici Hegelove filozofije prava - Zur kritik der hegelschen Philosophie des Rechts (or something like that)
• Sigmund Freud, Buducnost jedne iluzije i drugi spisi o religiji – Future of an illusion and other essays about religion
• Erich Fromm, Bekstvo od slobode - Escape from Freedom
  
  There is also:
  
  
• Ludvig Feuerbach, predavanja o sustini religije - Vorlesungen ueber das wesen der Religion
  Johann Most, Religijska kuga - Die Gottespest
• Esad Cimic, Socijalisticko drustvo i religija - Socialist society and religion
  
  Some books connected with history of religion:
  
  
• Max Weber, Protestantska etika i duh kapitalizma - text from Writings about religion
• Jean Delumeau, nastanak i ucvrscenje reformacije - Naissance et affirmation de la Reforme
• Jean Delumeau, Katolicizam izmedju Lutera i Voltera – Catollicism between Luther and Voltaire
  
  If there is need for some "advice" for potential readers of books, I can recommend Reich's books and Marx's "Zur Judenfrage", but I guess that most of people allready know some of this books and so ...