I have just completed the Free "Introduction to Surface Modelling" course. The content was great and easy to follow and complete. I now understand where I was initially going wrong trying to follow some youtube videos where the fundamentals were not explained, i.e. deleting or hiding the curves to ensure lofting and patching were from the edges and not the curves. I am looking forward to working through the Helmet and Motor bike courses I recently purchased. I hope to learn more and re-affirm my the knowledge learnt on the course. Thank you Nikita for the time and energy you have spent creating these courses.