In this chapter, we learned about the different aspects of SOLIDWORKS sketching that form our sketching foundations. We learned what sketching is and how to sketch different sketching elements, including lines, rectangles, circles, arcs, ellipses, fillets, and chamfers. We also covered using dimensions and relations to define sketches, as well as the meaning of the different sketch definition statuses, that is, under defined, fully defined, and over defined. 

All of this information is part of our sketching foundation, which we will use every time we build a 3D model with SOLIDWORKS. In the next chapter, we will address additional sketching commands that can greatly enhance our sketching performance and speed, such as patterns and mirrors.