Whats your purpose? If you want to gain an academic understanding, then mises.org is a good resource(though some ppl are against it) If you want to make money from stocks, then understanding economics will not help you, sorry to say
mises.org shills mostly discredited, heterodox economics. It's basically a bunch of conspiracy theories. Mises and Hayek are important philosophers and did some good work in a subset of economics but their subsequent 'followers' have used that to try give credence to their terrible conspiracy theories.