It was the first semester of my sophomore year. I had just done the most dynamic design sketch ever done of a butter dish with lid, from an ant’s perspective. While I thought it was cool, my instructor couldn’t tell if it was a butter dish, or some kind of modernist housing block. He then did something like the below demo I’ve done for you. This illustrates the importance of selecting a proper perspective in communicating your ideas.

Three rectangular forms of similar proportion in space. You can see how the perspective already implies scale.

With just a little form added, you can see how quickly the right perspective helps.

Now with appropriately scaled details and backgrounds, the three rectangles that are the same proportion, have totally different scales.
Good examples. Could use additional info.
Great explanation of how to render the proper proportions
Thank God my perspectives will get better now up to some extent. Thank you so much its really very helpful.
this is very helpful. I always struggle with perspective.
Michael DiTullo is currently a design director at Converse. His team is responsible for a wide range of products, from on-court performance footwear for athletes like Dwyane Wade to lifestyle and retro products. Previously DiTullo has been a footwear designer in the Brand Jordan and Sport Culture divisions of Nike, where he designed industry leading footwear and bags. Prior to joining Nike, Michael was a designer at Evo Design, where clients included Burton, Bose, VTech, Samsonite, Kodak, and Chantal among others.
Michael graduated from the Rhode Island School of Design, attended the Cleveland Institute of Art on exchange and studied design in Milan. Michael has won numerous design awards, freelances actively, teaches from time to time, can sketch an ‘82 Fire Bird from memory, owns enough shoes and watches to match them with T-Shirts, and geeks out on design way more than anyone should. In his free time, he is a contributor for core77. He has also lectured on design process at at universities, art schools, and corporations such as The Columbus College of Art and Design, The Rhode Island School of Design, and Adobe. His work will be featured in several upcoming books. DiTullo lives on the outskirts of Portland with his wife Kristina, who is a painter, and their dog, Louie, who is spoiled. http://michaelditullo.com/