In this short course I will discuss the different branes in string theory and M-theory from the supergravity point of view. The course will start with a simple introduction into supersymmetry (Lecture 1) and will be followed by an overview of the different supergravity theories that are relevant to the low-energy description of string/M-theory (Lecture 2). In Lecture 3 the existence of p-branes, i.e. extended objects with p spatial extensions, in M-theory will be discussed via the central charges that occur in the supersymmetry algebra. Branes of Type IIA and IIB string theory will be discussed. Finally, in the last lecture we will discuss the different dualities of string/M-theory.