We have studied some fiction about invisible man. Griffin was one of the character in book and many more other invisible character in movies. That seems a totally fiction in the world. But scientist have evolved many ways to be invisible now. Various companies are on the way to make "magic" truth. They are using various technology to make cloaks invisible.
One company is using camera technology to make it invisible. They use camera behind them and project it in front of cloak. This makes other people to feel that cloak is invisible.
The second technique uses nanotechnology to bend light behind the cloak in essence enabling the cloak to become invisible or see through. Isn't it amazing technology.