Odin hangs upside down from Yggdrasil, the Norse World Tree

He is given no food or drink and nine nights pass.  Then Odin sees the shapes of the runes. Crying out, he catches up the runes and falls from the tree and proclaims "From a word to a word was I lead"

Odin himself is shown in several ways,

A pendant of Odin with his blind eye, club foot and ravens around his head.

A helm plaque from the Vendel digs riding his horse sleipnir, "The Sliding One" with two ravens around his head.

Finally we have a pendant showing the world beast with the words of Odin in rune like letters!