The Federal Zone: Here is an interesting online book about the IRS and the current tax system. I have read this book and find it to have some interesting theories backed up by Supreme Court decisions and quotes from the Constitution and the USC and CFR. It's good reading that just makes you think. It should be noted that I do not particularly agree nor dis agree with the author on any or all of the contents of this book, I however am researching the statements set forth herein and will keep you updated on my findings. Good Reading :-)