I'm making a cake that will be four 6" rounds stacked on top of each other. What is the best way to cover them with fondant? Should I start from the top like a normal cake (however the top doesn't need to be covered)? Or should I wrap around the cylinder ? If I do wrap, does anyone have any suggestions of the best way for it to stick to the buttercream without peeling off or sliding down?

Thanks in advance!

bump...

Just be aware that if you wrap, you'll end up with a seam where the ends meet. If your decoration design will hide that, it's fine. But if not...

Covering it the same way you'd cover any other cake will be more difficult. You'll have to deal with much more pleating and folds at the bottom.

A seam won't be a problem because the decorations should cover it. How do I make sure the fondant sticks on there and doesn't peel or sag?

I have used piping gel lightly brushed onto the buttercream & not had a problem