Please correct me! Thanks Dear Dr. Sajadi, Thank you for introducing me to these wonderful books. I started reading, "geometry of curves and surfaces" and "Riemannian geometry" together. I finished the first one and enjoyed its detailed discussions and intriguing examples so much. I am in the middle of the "Riemannian Geometry ". "Riemannian geometry" unlocks the imagination and I derive a great deal of pleasure from it. Also, I have started studying "Selected Topics in Convex Geometry". From now on, I have more free time and I would be able to spend more time studying this beautiful subject. I wrote this e-mail to let you know how I am doing with my studies. Thank you for your time and consideration.