Re: Want to read some Lvoecraft, where should I start?
Esioul ... another short tale would be The Outsider. Very short in comparison to his other tales.
Most of his earlier tales are fairly short, for that matter, the exceptions being "The Rats in the Walls" "Herbert West -- Reanimator", etc. (I don't recommend the latter for a first taste of HPL, by the way....) You might try some of his Dunsanian pieces, too, such as "Polaris" or "The Strange High House in the Mist".
Little of HPL's work is what I would call "confusing", but some of it is rather complex --
At the Mountains of Madness being high on that list (though I would put it among his very best work, as well). I'd also vote for "The Colour Out of Space" as one of his best pieces of writing, and not a long tale, either. Very atmospheric, almost prose-poetry in the writing, and with a lot of careful emotional complexity in the layering, so that each reading you find new things to appreciate in the story. "The Music of Erich Zann" is quite good, too....