Patternist Series, Octavia Butler

Tomi, a tour guide, highly recommends Octavia Butler's science fiction books, especially the Patternist series and the novel The Fledgling, which is about an African-American woman who has to go back in time to save her white supremist ancestor in order to save her own life in the future. For more information on the Patternist series, go to http://en.wikipedia.org/wiki/Patternist_series