Dr. P. Kannaiahhas obtained his B.E. and Ph.D Degrees from S.V.U. College of Engineering,Tirupathi (A.P) and his M.Sc.(Engg) from PSG College of Technology, Coimbatore.He has more than 35 years of experience in teaching this subject. He hasauthored/co-authored 15 books, pertaining to certain areas of MechanicalEngineering, for both degree and diploma students. He has worked for 9 years inREC, Warangal, (A.P) and more than 25 years in S.V.U. College of Engineering,Tirupathi (A.P).