Mark Levin is just another Neo-Con warmongering authoritarian Israel 1st AIPAC whore.
People like Levin have been bastardizing conservatism for the last 30 years which has lead to this Frankenstein's monster of bigger more intrusive government in every possible way... Keynesian deficits, endless wars, corporate fascism, and quasi Judeo-Christian theocratic morality/military police state..... all under guise of being "conservative"
If you want to read a book by a REAL conservative try :
Capitalism & Freedom by Milton Friedman
Conscience of a Conservative by Barry Goldwater
The Road to Serfdom by Friedrich Hayek
Man, Economy, State by Murray Rothbard
If you have already wasted your money on Mark's book you could just use it for toilet paper.