The previous lesson covered the lid; this lesson covers the base. Several types of bases and their technical terminology: **Figure 1: Flat Base** - This is the most commonly seen type of base. On this flat base, a thin clay slab is typically added on top, which we call a false bottom (ceramic terminology: added bottom). **Figure 2: Recessed Base** - A recessed base refers to a base where the center is sunken inward (as in the "Xu Zang Tiliang," "Persimmon," and "Eggplant Segment" styles). **Figure 3: Bare Base** - As the name suggests, this is a bare base without an added false bottom. As shown in Figure 4, it can also be called a flat base because it is level and flat, or it can be called a bare base because no false bottom is added. The bare base in Figure 3 is a relatively typical raised base. Additionally, there is another type called the double-layer base. The double-layer base is generally used when making square-shaped teapots. The so-called double... [Note: The text appears to be incomplete at the end]