When we think of sketching we think about places and scenes, but drawing a small object like this coffee glass requires a lot of observation and careful use of lines to depict it’s shape and form. I like drawing simple things like these because it makes you really look at a thing that so many of us think we are familiar with.
In this example the shading and cross hatching really helps to bring out the facets of the glass and give the object a bit more dimension.
When you undertake a small drawing like this, make sure you have the big shapes in place first; like the top of the glass and conical shape that makes up the rest of the glass. Then comes the circular shape of the plate. It’s then a matter of dividing the glass with the facets that form curves near the rim and taper down to the bottom.