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.
In more specific terms, they are examples of modernist poetry. The poems' content and style reflect the modern life, especially in its influence on the individual. Eliot is skillful in showing this through his style in both poems. He use stream-of- consciousness to show the chaos in of the modern man's thinking. In addition, he uses many techniques such as imagism, repetition, fragmentation and other modernist techniques.