His title is crap, his writing style is conversational crap, and above all, do not follow his stock market investment advice.
That said, the premise is sound: work hard at creating residual incomes for yourself in your spare time, and before you know it, you'll be freer than you've ever been (yes this guy is from the 70's; there are lots of this and "that's a bad trip"-type comments). Some of his better points made:
This book was referenced in The Autodesk File, and acquired via Interlibrary Loan.