If you really want to learn sofa design, of course you have to learn sofa proofing ~ ~ ~
It is the same as learning to make clothes by hand. You have to master the technology before you can design. For example, how to design more comfortably and firmly, we should first consider structural proofing.
I think it's good. I believe that if you are willing to study and research, you will definitely develop in the industry. The more professional, the more necessary. I think the sofa design is quite good. Even if you don't always do this in development, it is helpful for you to do other designs. Let's go