This fits in the Non-fiction group, but I wanted to give it exposure here.

[Adsos Letter]

White Rage: The extreme right and American politics. by Martin Durham (2013)

I just finished this today, and I recommend it highly to anyone interested in this topic. At 180 pages it isn't long, but it is very well structured, and tightly argued.

The primary focus of the work is "the development of the American extreme right in the aftermath of Brown (vs. Board of Education)."

Durham spends one chapter on the pre-Brown history of the Klan, etc., which gives a good overview of the major players, and their origins.

The following chapters focus on post-Brown developments.

Topics covered:

1. Before Brown

2. American Reich

3 Out of the Southland

4. Not all Patriots

5. Race and Religion

6. Fighting for Women

7. A call to Arms

8. Race and the Right

9. Out of the 1950's

This work makes a good adjunct to Blood in the Face by James Ridgeway. Another very good treatment, though much longer and more detailed, is Zeskind's Blood and Politics.
Rage is also more current (2013) than the others.

What we are witnessing in our current politics jumps straight out of the pages of this book. The final three chapters alone are worth your time.