One of my favourite writers, even though I've only read a few of his short stories. He's a very striking writer who manages to combine very big ideas with reall

One of my favourite writers, even though I've only read a few of his short stories. He's a very striking writer who manages to combine very big ideas with really fluid prose, which is something that seems quite rare. I understand he's written several short stories available only online (freely available) rather than in print. If anyone knows of a Kindle version that collects his online stories I'd be very grateful!