Junji Ito

The Enigma of Amigara Fault is a creepy comic by Junji Ito. When many man shaped holes suddenly appear on the sides of a mountain, it causes thousands of people from all over the world to gather, then things get very twisted.
Read the full comic here. Be sure to read from right to left, instead of left to right.

Yami No Koe - Junji Ito

Tomie (富江) is a Japanese horror manga series written and illustrated by Junji Ito. it tells the story of a high-school girl named Tomie, who can be seen as a living embodiment of lust and all the negative emotions that go along with it, such as jealousy. She possesses an undisclosed power to make anyone fall in love with her. Through sleight of hand, or emotional manipulation, she drives these men into jealous rages that inevitably lead to brutal acts of violence. Men kill each other over her; and girls are sometimes driven to jealous rages as well. She is inevitably killed time and again, only to regenerate. Tomie is the ultimate self-destructive entity, yet ironically she survives anything and is cursed to go on forever in this way.

Everyone needs to read Tomie.