In this book, various flow situations of multidimensional boundary layer flows and heat transfer have been examined. The impact of surface expansion/contraction and rotation has been investigated on the internal boundary-layer flow inside pipe of uniform cross-section. The effects of surface stretching, rotation and oscillation on momentum and thermal transport in the external boundary-layer have been considered in the flow near solid surfaces. Analytic and (or) numerical solutions have been obtained in all cases, however the preference has been given to the analytic solution. The calculation of skin friction coefficient and the coefficient of heat transfer has been the major study.