Leaf by Niggle, etc...

Hi, I'm new here so there has probably been a topic like this already, but never mind, eh?
So.
Has anybody read Tolkien works such as Leaf by Niggle, Farmer Giles of Ham, etc? I think they are aimed at a slightly younger audience than LOTR, but they're sill great! Just wondering, because I haven't yet met anyone on my travels who has read them...