There are numerous literary devices that may be found in any given poem, such as meter, rhyme, rhythm, symbolism, imagery, repetition, consonance, assonance, alliteration, enjambment, and so on.
Three other elements of poetry are rhyme scheme, meter (ie. regular rhythm) and word sounds (like alliteration). These are sometimes collectively called sound play because they take advantage of the performative, spoken nature of poetry.
The key difference between literary devices and poetic devices is that literary devices are techniques a writer uses to convey his/her intended meaning to others, while poetic devices are a variant of literary devices used in poetry to convey the poet's intention.
