The term 'sciatica' describes pain along the course of the sciatic nerve in the lumbar spine that causes pain to radiate from the back down the leg in the distribution innervated by one of five distinct nerves: L1 = groin, L2 = upper thigh, L3 = middle thigh, L4 = knee, L5 = shin, top of foot, big toe, S1 = lateral calf, heel, bottom of foot ( ...
PoetrySoup is a great resource for examples of calligram poems or a list of calligram poetry. These examples illustrate what calligram poems look like. There is also a link below to the definition of calligram and a page where you can discuss these types of poems.
Traditional poetry is more strict in its form. The sonnet, ode, blank verse, ballad, dramatic monologue each have formal elements that poets follow. For example, the sonnet is a 14-line poem in iambic pentameter with a set rhyme scheme. William Shakespeare, John Milton, John Donne, Alexander Pope, William Wordsworth, and John Keats wrote traditional poetry, among others.