But if you are a newbie and a teenager, here is my brief introduction:
Isaac Asimov is one of the three grand masters of science fiction along with Robert A. Heinlein and Arthur C. Clarke. He is best known for the Foundation series which is probably the best science fiction series ever written in the history of mankind. It should also be mentioned he has written more books than you have read in your entire life. Don't believe me? Well, tell me, how many years will it take you to read a few above 400 books?
Well, I can write on and on and run out of adjectives. Why don't you check him out in the following videos? It feels like every sentence he uttered in the videos is quotable. Go watch them...
And here is part 2.
If you have liked the videos, consider reading the Foundation series. Or go watch "I, Robot". The famous movie starring Will Smith is based on his book.