I have already created presentations for CCNA. Though this presentation covers most of the stuff, I feel that a better presentation needs to be made. I have left out some topics like wireless, SDM etc which I should include in the new one. Also I have to create presentations for CWNA, CCSA and CCSE. Oops and I keep forgetting about Linux, I have to take Linux batches more often or else I might forget about the whole subject.