Yousuf Karsh?

can someone help me i%26#039;m lazy. I%26#039;ll give you all stars and free stars to come! i dont care, can nayone tell me the background of yousuf karsh? his originality of his photos, what techniques he used and his life background? what inspired him to become a photographer and how he died? pls i%26#039;ll give you all stars (summarized in your own words if you can, if not then its ok)