Thanks to the growth of computational power and the development of new production technologies, NURBS modeling has become the standard in many fields: Industrial Design, Architecture and, more recently, Engineering. Simplified Complexity is a method for learning NURBS modeling with Rhinoceros®. Born as the synthesis of twenty years of professional experience and teaching, Simplified Complexity consists of a structured knowledge system allowing deep understanding of the software. With this method the user can take advantage of Rhinoceros® full modeling potential. The idea behind Simplified Complexity is that even if the software has a clear and intuitive interface, NURBS geometry remains quite complex. In order to become a professional user, it is necessary to start from basic geometry knowledge: this will allow to foresee and avoid complexity or, if this is not possible, at least reduce it and optimize it.