According to Wikipedia, Haki R. Madhubuti is an African-American author, educator, and poet, as well as a publisher and operator of black-themed bookstore. He is particularly recognized in connection with the founding in 1967 of Third World Press, considered the oldest independent black publishing house in the U.S.
Number of citations in a given year to any of this author's works
Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author