Objective: I thought it would be a good opportunity to spend a little bit more time with understanding the Shape Builder Tool.
1) Download and open the Shape_Builder.ai file below.
2) Download and open the Shape_Builder_2.ai file below.
3) Start YouTube Shape Builder Tutorial Below.
4) Start with the 1st Shape_Builder.ai file and work through the video. Then, work with the Shape_Builder_2.ai file with the video IN THAT ORDER.