The book sheds light on the role of isospin degree of freedom in reaction dynamics of heavy-ion collisions via transverse in-plane flow. Role of the nuclear symmetry energy and nucleon-nucleon scattering cross section has been envisaged in detail. The investigations presented in the book revealed that the transverse flow can act as a very promising probe of the nuclear symmetry energy at supra-saturation density region, where the nuclear symmetry energy is highly uncertain. The details of nuclear dynamics involving neutron-rich colliding nuclei has also been presented. In short, this book...