The book deals with advanced topics of applied mathematics taught in universities and technical institutions. The subject matter is presented in 15 chapters. The first chapter offers the pre-requisites starting from numbers extending up to complex numbers. Vivid topics on group theory, vector algebra and vector calculus are included. The second chapter offers a comprehensive course on 'ordinary differential equations (ODE)' needed in the subsequent discussion. M bius transformations, Laplace transform, inverse Laplace transform, their applications to solve ODEs, Fourier series, Bessel's and wave equations are dealt in detail while multi-valued functions, diffusion equation, rotation group and non-relativistic scattering are briefly covered. The book is suitable for one year/two semester course for graduate students with 3 hours weekly credits. The presentation is made as lucid as possible based on the author's long teaching experience of the subject for over 5 decades at different universities worldwide.For more details, please visit https: //centralwestpublishing.com