When you're first starting out in photography, the veritable plethora of pieces of equipment and specs lists can certainly be a bit overwhelming. Of all the options, you should absolutely consider picking up one of these lenses, however.
Coming to you from Adorama TV, this helpful video talks about low and mid-tier 50mm prime lenses, commonly referred to as "nifty fifties." If you just bought your first advanced camera, you might have gotten a kit that came with a lens like a 18-55mm f/3.5-5.6 or something similar. And while, yes, that is a plastic barrel that houses a series of glasses elements that bring light to a focus and create an image, it has some serious limitations related to maximum aperture and image quality, as well as lacking the educational component of a prime lens. The nifty fifty is so popular because it's quite cheap compared to lenses of similar maximum aperture at other focal lengths, it's a good step up in image quality from a kit lens, it enables low light and shallow depth of field capabilities you wouldn't have otherwise, and it'll teach you a lot more about photography. Watch the video above for more on why they're held in such esteem.