Uzumaki: A fantastic 3 part series by horror master Junji Ito, Uzumaki can currently be found on manga bookshelves. Uzumaki is completely surrealist. The evil is oppressive, omnipresent, and completely faceless. Regular people are trapped in a small coastal town, and do their best to escape or hide from it while the evil wildly corrupts EVERYTHING around, isolating them. Literally, Uzumaki is about a town being terrorized by the abstract of a spiral. Its as strange as it sounds and I've never seen anything like it, but it winds up being incredibly effective. Uzumaki, by the conclusion, offers few direct answers and leaves the reader to simply wonder about the madness of the unknown. Lovecraft could take notes ('yeah I said it, wanna fight about it?'). Uzumaki also features a few side comics the author has made in the theme of the series (surrealist horror). Avoid the live action movie, it has nothing to do with anything and was completed while the manga was still being made, supposedly.
HELL YEAH! XD
*Everyone* should read Uzumaki. And while you're at it, read Gyo too. Those are two very awsome comics by Ito. :D
Also I suggest:
[en.wikipedia.org] - This is Rumiko Takahashi's best work in my opinion. (Yes, I think it's better than InuYasha and Ranma 1/2). It's a romance story, but I think guys would dig this as well (it really isn't all that girly). It's really funny, there are a lot of likable (and hateable) characters in it, which makes it a really interesting read even though it's very long. A very realistic, well put-together, and loveable tale. And I like that Kyoko is not the typical girl the main guy is after because she's a widow and has lots of baggage.
[en.wikipedia.org] - once again, this is another romance manga, but it's not typical at all, it's very intense. The characters' emotions are very real and you really want to sympithize with and get to know them. The main characters are a good example of "opposites attract", but in a believable way. And the art in this manga is reallllly pretty.
[en.wikipedia.org] - (no, not planets XD). I have an affinity to things concerning space, so if you like space and science fiction then you should certainly read PLANETES. It's captivating and sadly so underrated. D:
-Koko wa Greenwood (Here is Greenwood)
[en.wikipedia.org]- this manga is plain silly, which is why I love it so much. It takes place in all-boys boarding school and is a series of little stories/adventures centering around some of the (crazy) boys who go there. If you want to roll around laughing, read this.
-Pet Shop of Horrors
[en.wikipedia.org]- Rabbits shaped like little girls, dogs shaped like grown men and many other strange pets can be found in thios manga. It's an interesting take on horror, and has touches of dark humor in it too. And who doesn't love Count D?