As a follow up of "The Third IMACS International Conference on Nonlinear Evolution Equations and Wave Phenomena: Computation and Theory" held in Athens, GA,USA, 7-10, April 2003; 2 Special Issues on Nonlinear waves: computation and Theory III and IV have appeared in the Journal of " Mathematics and Computers in Simulation", Transaction of IMACS, Vol. 69, Issues 3-4, 5-6, May and August 2005 respectively. Dr. Thiab Taha served as the Program Chair of the Conference and a Guest Editor of the Special Issues. Tags: Technical Event Organizations