Poetry is a type of creative writing – or literary art – that is meant to express ideas, thoughts, feelings, and emotions, but with a unique style and rhythm. Pieces composed as poetry are commonly referred to as poems. There are a number of different types of poetry, some more common than others. Many poems, for instance, will tell stories. Some, on the other hand, is nothing more than an outpouring of emotions, including anger, sadness, and elation. Although many people associate rhymes with poetry, this is not always the case. Some poems are written using each letter of a word or phrase as the first letter of each line, and some are even written so that their words form a shape, such as a heart or a tree.