Abstract: Graphene is a monolayer of carbon allotrope that has honeycomb connections. The scientists have brought graphene to their focus. A large amount of scientific paper has already been written related to this issue. In this paper, I try to write a simple review of graphene and discuss it. I will focus on main concepts of graphene such as history, prospective of graphene, its grandeur, properties (including its optical, electronic, and mechanical properties) of graphene, its economic landscape, and finally the defection of graphene and its impact on semiconductors and mechanical behavior of graphene will be discussed.