Poe

In Ocarina of Time and Majora's Mask
In Ocarina of Time and Majora's Mask, Poes take on the appearence of hooded wraiths with no faces and glowing eyes. They are identifiable from a distance by their distinctive lanterns while the Poe itself comes into view as Link approaches. They can easily be defeated by slashing it with the sword. After that, you can catch their spirit in a bottle. Drinking it will usually make you recover health, but it can actually damage you as well. They can be found in Kakariko Graveyard in Oot and Stone Tower Temple in MM. Note that they'll become invisible for a while when targeting them, so you'll have to refrain from doing that. There are also ten Big Poes in Ocarina of Time that can be found scattered throughout Hyrule Field in the adult time period. Big Poes can only be easily hunted down on Epona and killed using the Bow from horseback. Once killed, you can collect their Big Poe spirits and sell them to a cloaked man in the gatehouse of Hyrule Castle Town.

In The Wind Waker
In The Wind Waker, Poes have a difference appearence, now masked with multicolored bodies. The Poes are now permanently translucent until direct light is shone on them using the Mirror Shield. The Poes will then become solid and run frantically about the room, making them vunerable. Occasionally, they'll possess you, causing the controls to reverse. They appear in the Earth Temple.

Twilight Princess
In Twilight Princess, Poes take on a substantially different role. First, there are 80 total Poes which are only visible at night and using Wolf Link's Sense ability. Second, there are two different types of Poe: smaller whitish Poes that stand atop their lanterns and swing scythes to damage Link and four special Poes that can be found within the Arbiter's Grounds. The normal Poes form the objective of one of Twilight Princess's subquests. Jovani, a man cursed for his greed, asks you to obtain the souls of all of the Poes so that he can be restored to normal. Poes are scattered everywhere in Hyrule, making this similar to the Golden Skulltula subquest in Ocarina of Time.

Notable Poes

 * Poe Sisters
 * Big Poe
 * Jalhalla, Protector of the Seal