e.e. cummings is a non-traditional poet, experimenting with form, structure and syntax to create an innovative and fresh take on 20th century poetry. For me he is probably the most accessible avant-garde poet. He plays with language in a way that reminds me why I enjoy language so much, and that delights me. If you aren't familiar with his work I suggest you check out 100 Selected Poems which contains one of my favorite cummings poems, "who knows if the moon's":
who knows if the moon's
a balloon,coming out of a keen city
in the sky--filled with pretty people?
(and if you and i should
get into it,if they
should take me and take you into their balloon,
why then
we'd go up higher with all the pretty people
than houses and steeples and clouds:
go sailing
away and away sailing into a keen
city which nobody's ever visited,where
always
it's
Spring)and everyone's
in love and flowers pick themselves