This book provides a comprehensive analysis of heat and mass transfer in Micro/Nano fluid flow in the presence of thermal radiation, shape factor and magnetic field. When the nanoparticles are added to the pure fluid, the mixture which is called "Nanofluid" causes larger thermal conductivity compared to the base fluid. Simulations of problems are done based on the numerical method. It helps researchers, Ph.D. students, mechanical engineering, Chemical engineering and scientists who work in the field of enhancing the heat transfer and fluids flow.