Listview Image size

[p3k_me]

How can I change the size of the icon in the Listview..? (yes, I'm a newbie)
If I can't, which form should I use that displays large images in it in Tiles formation (hope I'm understandable)

 

[kulrom]

LargeImage or SmallImage? Also, can you explain how you load the icons?

Cheers