This document provides definitions and descriptions of various hip hop dance styles. It begins by defining hip hop as a cultural movement originating in the Bronx in the 1970s involving elements like DJing, rapping, graffiti, and b-boying. It then discusses the history and origins of hip hop. Finally, it categorizes and describes 15 different types of hip hop dances including locking, popping, breaking, house dance, tutting, and lyrical dance among others. Videos are provided as examples for many of the dance styles.