Tell me about Pratchett's kids books

My niece (or is it neice?) received, from me, the first Lemony Snickett book this past Christmas. She was very excited. For her birthday, I got her the second and, since there was a sale, the third and fourth as well. This weekend she told me that she has read all ten published to date and that she’d like to obtain the full set so that she can re-read them and maybe give them to her kids one day. Clearly, this is the sort of thing I’d like to encourage.

I was thinking that if I sent her some from Amazon, I might as well send along one of Pratchett’s children’s books as well. Unfortunately, I don’t know anything about them, if they’re all connected, if they all go in order, or if some need to be obtained before the others.

So, can anyone help me out on this? Your assistance is much appreciated.

Pratchett’s childrens books:

The Carpet People -
stand alone book about tribes of tiny carpet dwellers

The Gnome trilogy, aka The Bromeliad - Truckers, Diggers & Wings -
a tribe of tiny gnomes discover that their home (a failing Department Store) is about to be demolished. They have adventures getting back to their ancestral home involving having to figure out how to use various human-built devices

Only You Can Save Mankind
Johnny and the Dead
Johnny and the Bomb -
An English boy and his friends negotiate a truce with invading space invaders (literally), help some ghosts whose cemetery is up for development and travel back in time to his grandparents’ time.

Wee Free Men
A Hat Full of Sky

The Amazing Maurice & His Educated Rodents -
The first two and, I think, also the third are juvenile Discworld novels; other people can comment more knowledgeably on their merits…

All three are Discworld books.

The Amazing Maurice and his Educated Rodents: a new twist on the Pied Piper of Hamelin by a clever con man.

The Wee Free Men: A little girl discovers her knack for witchcraft, comes to terms with the loss of her grandmother, and saves her little brother from the Queen of the Elves, with the help of the Nac Mac Feegle (aka the Pictsies).

A Hat Full Of Sky: Haven’t read this one, but I understand it’s a sequel to The Wee Free Men.

Allow mw to join in with another question about Pratchett’s children-oriented books: did anyone actually have his/her children read them? What was the result? I am very curious about his, but not having children of my own, I can only ask.

I loved the Bromeliad Trilogy (now available in a single bound volume). It struck me as the kind of book that adults could read to even young children, and both enjoy it, except on different levels. Disclaimer: I Do Not Have Children Myself.

The Amazing Maurice is very good - I liked it. It may be a trifle too dark in tone for younger children.

I thought The Amazing Maurice was pretty much just like the Bromeliad, but with rats.