The ITA "blackboard" Colloquium (ITA BBC) focuses on the introduction to modern topics in Astrophysics, presented by colleagues, who are experts on their own field. The colloquium is given on the blackboard, where the speakers demonstrate the most interesting aspects of their research. Participants are allowed to ask questions during the presentation, making the discussion more lively. Presenters are encouraged to also show few slides, which will help them visualize their presentations more efficiently.