Guardian - Julius Lester to sum up the book I'm gonna use two quotes from it:
"While the subject matter is lynching, on a deeper level, this novel is about identity. Whom and what we identify ourselves with determines our characters, determines who we are, and what we do."
~Julius Lester

"....the racial divides in the United States will not be overcome until lynchings of all kinds are as painful to nonblacks as they are to blacks, until each of us become guardians of the sufferings history has bequeathed us."
~Julius Lester

Also I loved the first two pages of this book and if I had more time I would quote the whole two pages here.But I'll just quote a small part:
"But there are times when a tree can no longer withstand the pain inflicted on it, and the wind will take pity on that tree and topple it over in a mighty storm. All the other trees who witnessed the evil look down upon the fallen tree with envy. They pray for the day when a wind will end their suffering. I pray for the day when God will end mine."