Here are a few books that are a good start for research on the topics on this website.

None Dare Call it Conspiracy by Gary Allan
This book discusses the start of the Federal Reserve, socialist ideas, collectivism, and the establishment.
A full text copy of the book is available online at http://reactor-core.org/none-dare.html.

Brave New World by Aldous Huxley
This book, although a book of fiction, provides interesting views of social engineering, conditioning, and control of the world by a small group of elites. The book seems a bit extreme, but many of the ideas contained within are legitimate issues.

This section is small for now because I do not want to recommend books that I have not read completely.
As I read more, I will update this section accordingly.