Dr. Naresh Kumar is currently working as Associate Professor in the Department of Mathematics at Institute of Aeronautical Engineering Hyderabad. He completed his Ph.D. from MJPRU Bareilly. Having 20 years of teaching experience from various institutes and universities and also has 8 years of research experience. He also published a lot of books & research papers in reputed journals. In this book, he explains various unknown facts and knowledge about discrete mathematics. His areas of interest are manifolds, fluid dynamics and discrete mathematics.