When it comes to camera gear, the lens is probably one of the most important piece of equipment you can buy. In many cases, upgrading your lens will probably make a far greater difference than upgrading anything else. This is why it's important for photographers and videographers to understand all the different types of lenses that are available.
In a recent video from StudioBinder, they explain every type of lens that is currently on the market, from fisheye lenses, to telephoto, to tilt-shift lenses. Different kinds of lenses can produce completely different looks of the same scene. For example, with a telephoto lens, you can quite easily completely blur out the background and produce flattering portraits. This isn't necessarily as easy to achieve with a wide angle lens.
Tilt-shift lenses are another type of lens with which I personally have a great deal of experience. These kinds of lenses allow you to shoot tall buildings from a relatively close distance without introducing any distortion into the image. For architectural photographers, this is obviously extremely useful and, in some cases, crucial.
The point is that having a good understanding of all the different kinds of lenses can be invaluable. The video linked above does a great job of providing a good explanation for this. I also recommend you check out some of the other videos on the channel, because aside from the brilliant production value, the content is fantastic.