I held a Bachelor-level seminar on the geometry of curves (immersed curves) at the University of Hamburg in SS21. I wrote for that a plan of talks based on available literature on Springer Link and in the library. I also gave one talk about the Fáry-Milnor theorem. In the talk I also sketch a proof of the fact that there is no non-trivial smooth knot in dimension other than 3 and draw the sequence of moves to transform the trefoil knot from its torus knot form to the form minimizing the bridge number.