A real investment approach is highly personal. It depends on your abilities, your time, your assets, amount of money to invest, life style, goals, etc. One size doesn't fit all.
One way to start is to read everything you can, and don't believe everything you read.
Start out with a "finance for dummies" type book. I would stay away from the TV shows...they are mostly hype and entertainment.
All that being said, basic standard advise is (1) own your home and (2) tax deferred IRA's in no load mutual funds.
Good Luck.