What do wealthy people have in common? What one activity do they all recommend you do? What one activity do they credit with their outsized success?
The answer is: they read. See Andrew Merle's post.
Wealthy people are voracious readers. But they do not read for entertainment. They do not read pulp fiction. They read to learn. They read to accumulate information. When it comes to garnering more facts no other medium does better than reading. You learn more in a shorter period of time from reading than you do from television.
What do they read? Of course, they read the business press. They read books about business and finance. They probably even read books about economics. They read about politics and history and science. They might even read biographies. As long as they might learn something from the book, they read it. If it is mere entertainment, they avoid it.
Nothing about it is complicated or mysterious. There is no magic potion or secret that will make you into a great success. But, the travail of reading, the time you set aside to become more informed about your business and the world… will inevitably serve you in excellent stead.