Poker = A legitimate profession - please help PROVE this!!!!

[6max6max]

I started playing professionally 2 years ago. I have made 50K+ each of the past two years, yet I still hear "your just a hustler", etc... from one particular family member. Furthermore, I am on pace to triple my income this year.

Is there a good book, etc... that offers some backing for the legitimacy of poker. After all, I spent more time learnig/studying this game than I did getting a masters degree before I truly started to "beat the game".