This document defines and provides examples of alliteration and assonance. Alliteration is the repetition of initial consonant sounds in words close together, like "cool was I and logical." Assonance is the repetition of vowel sounds in nearby words that start with different consonants, like "hear the mellow wedding bells." The document cautions that repetition of letters alone does not constitute alliteration or assonance, as the repetition must be of sounds. Examples are provided to illustrate proper uses of each literary device.