Since my dad wasn't the richest investor in the world, he wasn't the best so I started googling and quickly came across Warren Buffett. Not only is he the best (personal opinion), he also had a strategy that resonated with me. I had read basic books on technical traders, position traders, day traders and none of that made sense to me since they often neglects the underlying business. (I also didn't find traders close to the top of forbes' list.)
Once I found something that made sense, I pretty much watched every video online or tried to read every book he recommended. Luckily Warren Buffett loves teaching so there is plenty online you can find. The intelligent investor is definitely a must read. So is "security analysis", "common stocks uncommon profits" and a bunch of others. Here [1] you can find a list of "Buffett approved" books in case you run out.
[1] http://www.bookwormomaha.com/store/c-2-berkshire-hathaway-20...