Is there any complete set of agatha christie's novels and short stories?

i've few books by agatha christie and i really love it. i wish to get all her books. but she's written so many novels and short stories, it's quite difficult to buy each individually. so i was wondering if there's like a complete set of her collections? or maybe a compilation of all stories of ms marple or poirot etc. which will make it easier to buy like inkheart trilogy, that has all the three inkheart stories in a book.