Rap evolved as a vernacular term used among African Americans to define a stylized way of speaking. Over the years, black radio disc jockeys, musicians, literary figures, and 1960s political figures incorporated rap into their performances or way of speaking to appeal to black audiences. By the early 1970s, rap continued its development in the urban streets among “rhymin’ emcees” (MCs) accompanied by pre-recorded music, provided by a disc jockey on two turntables. This concept became associated with a youth arts movement driven and populated by black and Latino youth in New York City called hip-hop. Comprised of four elements—breakdancing (b-boying/b-girling), graffiti (writing), disc jockeying (DJing), and emceeing (MCing)—hip-hop also distinguishes a distinct form of dress, gesture, and language that embodies an urban street consciousness. By the late 1970s, the rhymin’ MC/DJ combination attracted music entrepreneurs who recognized the commercial potential with the release of the recording “Rapper’s Delight” by the Sugarhill Gang. Subsequently, music trade magazines such as Billboard contributed to popularizing the MC/DJ concept as rap music. Additionally, the production of hip-hop arts via the silver screen, advertising, and fashion industries further contributed to its rise to global prominence. Realizing its viability to a growing youth constituency, entrepreneurs placed significant value on certain elements of hip-hop believed to be more marketable to youth consumers in the popular music mainstream. For example, MCing and DJing became primary markets while breakdancing and graffiti served as hip-hop’s secondary markets. As such, rap music eventually eclipsed in popularity breakdancing and graffiti, thus solidifying this music category. Occasionally, critics and aficionados use rap music interchangeably with hip-hop. The sources herein will be used interchangeably as rap music/hip-hop along with their associates (breakdance and graffiti), and allied traditions. Similar to the burgeoning success of hip-hop culture in the mainstream popular culture, rap garnered the attention of academicians during the late 1980s, who perceived it as fertile ground for the study of popular youth culture. This is evident with a flurry of theses, articles, books, journalistic writings, and photo-essays leading to the establishment of hip-hop studies. Today, there are thousands of written sources on hip-hop. Rather than attempting to present all of these written sources, which would be beyond the scope of this bibliography, this article instead offers a survey of book sources and seminal journal articles that reflect the erudition, scholarly depth, and interdisciplinary scope of hip-hop studies.