This paper is a practical guide to cloth simulation. It starts with the theory behind differential equations, and shows how to apply it to cloth simulation. There are several interesting points in the paper 1. Modelling clothes seems to be an art in itself. There is no single well-known formula for doing it. The model they used is different than the one in the other paper. 2. It was refreshing to read again about implict vs. explicit integration and the big improvement obtained by using implicit integration. 3. It was nice to see the amount of tricks used, like mass modification and the weird method they used to handle collisions. In summary, I liked the paper. I think it had some nice insights on how to model clothes (and physical systems in general). I wasn't entirely satisfied with how they handled collisions. This is why I decided to read the paper about robust treatment of collisions as my second paper!