Last night we discussed ellipses (circles in perspective), planar analysis, the categories of light and the Ideal Solids (standard geometric forms found in most objects). The Ideal Solids are: cone, sphere, cylinder, open cylinder and cube. In addition, we talked technique, additive tonal drawing with the charcoal sticks as well as pencils and reductive drawing with the erasers. Jin's drawing of a cylinder illustrates additive tonal techniques addressing the categories of light with reductive drawing (using the eraser) as well. Furthermore, the contours have been emphasized for greater volume. Check the tabs above for more info on the Ideal Solids and the categories of light under Value.