Fredric Brown won the 2012 Cordwainer Smith Rediscovery Award, it was announced at Readercon.

He wrote both science fiction and mysteries, and you can get his works at Amazon, both as physical books and as Kindle ebooks, which can be read on any computer or tablet.

Here is part of what Cordwainer Smith scholar Alan Elms wrote me about Brown. I've added links to Amazon. 

Fredric Brown is an EXCELLENT choice, I think. He is by no means forgotten by us older guys -- he has been one of my favorite SF writers (and mystery writers) since the paperback publication of his first short story collection, Space on My Hands, sometime during my early teens.

If you want to read some of his stuff, NESFA Press has a one-volume collection of all his short stories, much like their one-volume CS collection. Among my favorite stories is "Arena," which was dramatized on a classic "Star Trek" installment under the same title and with appropriate credit to Brown; "Knock," with famous opening and closing paragraphs; and "Star Mouse," which probably made my younger daughter into an SF fan when I read it to her repeatedly before she could read it herself.

He also wrote several SF novels, all included in another NESFA volume, but you should be able to find a used paperback of the best -- and funniest -- one, "What Mad Universe." I also liked another funny one, "Martians Go Home" (which was filmed rather badly), and a serious one, "The Lights in the Sky Are Stars."