Standard numerical methods are of little use in solving problems involving boundary layers. This volume presents an essentially new numerical technique that gives precise results in the boundary layer regions for the problems discussed. It shows that this technique can be adapted in a natural way to a real flow problem and can also be used to construct benchmark solutions for comparison with solutions found using other numerical techniques. Written at the advanced undergraduate and research level, this book provides readers with an understanding of the underlying principles and the essential components needed to construct numerical methods for boundary layer problems.