2.3.1 Design Concept focuses on topological transformations. While I was trying to pick a reference object, I had to take 4 things into account. These 4 factors were the volume, scale, analyze-ability of the object, and whether it was asymmetrical. After taking everything into account, I figured it would be in my best interest to choose a shoe as my reference object. Before I started my sketch I reviewed the demo provided in the wiki. After I chose a shoe as my reference object, I took into account the hidden geometries that are present with any object. Before I went straight to my graph paper, I did some rough drafts in a sketchbook. At first, I started with the side of the shoe sketch. Then after this, I did the top of the shoe, and then finally the front of the shoe. I made sure to precisely measure the size of each sketch as I drew it so I got an accurate sketch as I could of. After I finished all the sketches I scanned the sketches on a printer. This will allow me to import my orthographic sketches into Fusion 360 and then create a 3D model of the shoe that I sketched.