From Everything.Sucks
Kindred is a novel by American writer Octavia E. Butler that incorporates time travel and is modeled on slave narratives. First published in 1979, it is still widely popular. It has been frequently chosen as a text for community-wide reading programs and book organizations, as well as being a common choice for high school and college courses.
A reader mentioned, "Kindred is a bad, heavy-handed, and overly didactic book that should never have been marketed as adult fiction."