Rich Dad Poor Dad is a 1997 book written by Robert T. Kiyosaki and Sharon Lechter. It advocates the importance of financial literacy, financial independence and building wealth through investing in assets, real estate investing, starting and owning businesses, as well as increasing one's financial intelligence.

Here are the 8 key lessons:

1. learn to listen

2. Pay yourself first

3. Buy luxuries last, not first

4. Reduce expenses and liabilities

5. Aim for more valuable assets

6. Be in control of your emotions

7. Work to learn, don’t work for money

8. You become what you study, so read

9. Reinvest excess cash

10. Surround yourself with people who are smarter than you.