re: Fondant making tutorials?

Oh wow thanks for all your responses!!! This is going to help me out so much!! Also… this may be a silly question… But do you need to do a crumb base over the baked cake with a buttercream icing BEFORE you put the fondant on? Or do you just roll out the Fondant and put it straight over the baked cake?? Also if anyone has a good buttercream recipe I’d REALLY appreciate it!! God I’m such a novice!!!