Sula

This was an interesting book that had a "binary" view of things.  You have the white and black dynamic, difference of mothering styles throughout the book, and different types of personality interactions.

The reader is immediately introduced into the white and black dynamic per how the community of Bottom was established and the irony of the name of the community.  The additional irony is the ending result of that community based  on future interaction between the white and black communities.  Then you have Nel and Sula's mother and grandmother difference of raising children (be it hands on or free will) and how that affects those characters as they grow up.  This then leads to the how Nel and Sula's personality transitions as they grow into their own womanhood and friendship changes through time. 

As usual, Toni Morrison illustrates the injustices between the races and the lasting effects of racism.  She also does a great job demonstrating how the differences of raising children can have a lasting effect on them and future generations.