Rich Dad, Poor Dad is all about changing the way you think about money. It contrasts two different mindsets: one from Kiyosaki's "poor dad" (his biological father), who followed the traditional route of working hard, saving, and relying on a steady job; and the other from his "rich dad" (his friend’s father), who focused on investing, entrepreneurship, and making money work for him. The book pushes financial education, encourages taking risks, and highlights the importance of assets over liabilities for building wealth.