take up photography

I bought my Nikon D40 on Friday and bought lenses that I don’t exactly know the name of. I believe it’s 18-35 mm ones, I’d really love some fisheye widespan lenses, just to mock my friends and family when I see the outcome of the picture. I’ll be reading up on photography on the weekend more to understand my camera since I’ll be at my cottage with no access to internet, meaning no need to attempt to work. :(