Here is an image of some practice I did of drawing a vase on my desk. Using a cube to generate the shape for a cylinder definitely made this process easier.

Here is the practice drawing of my desk in my sketchbook. Once again, I used a cube when generating the shape for my desk. I used the cube with an extra side when making the shape for my desk chair. However, the vase in this image is not to scale with the vase in real life. 

This is my final rendering of the corner of my desk in our office at home. Using the techniques I learned in chapter 3 helped me to achieve this drawing. I found it difficult to get accurate shading underneath the desk, as there were many different shades with how the light was hitting it. The items on the desk turned out well as they are pretty proportionate to the items in real life. I struggled with the chair legs since they are portrayed in strange angles.