List of cognitive biases
en.wikipedia.org
en.wikipedia.org
For me, the best practice that I've found at identifying and getting past biases has been meditation. Finding a teacher or a style that fits your biases is important to keep you motivated until the self-motivation kicks in.
How do I really think better? In my experience, just knowing about the biases didn't helped me in becoming more rational and being able to think better. Any suggestion?
There are also books that supposedly help with effective decision making, such as Judgment in Managerial Decision Making. I haven't tried any, so I can't recommend any in particular. I'm sure there are recommendations out there.
http://www.amazon.com/Judgment-Managerial-Decision-Making-Ba...
But you'd have to define what "thinking better" means to you. Do you also want to act in a more rational way?
What kind of disciplines or subjects do you recommend in those fields? I'm a ongoing undergrad in Computer Engineering, and I have a little bit of background in Math, it is not so great, but is solid. But philosophy is something I'm a enthusiast but do not have any solid knowledge.
Arrogance is the most common mistake people make. Because they're ashamed of being wrong. Just don't be. Embrace that you're human and you're likely wrong about most of what you understand. Simply because you're human. If you notice, about 90% of all cognitive biases derive from arrogance.
After you understand how prone to cognitive bias human beings are. You should understand that the chance of you being wrong about something you're absolutely positive about. Is actually huge. You're wrong more often than not.
The practical advice to take from this is to simply be careful, be skeptic, doubt yourself. Just practice, stepping back for a second and assume that you might be wrong before jumping into conclusions. Doing that, you'll find that you were wrong much more often than you thought. And after you note that you're wrong, you can then improve your opinion.
Unless I'm mistaken, of course :)
http://lesswrong.com/lw/72m/an_epub_of_eliezers_blog_posts/
Are good places to start - but it takes a lot of work to make ones thinking better. You're right, just knowing about biases is not enough - you have to be able to recognize when your thinking becomes bias, take a step back and recalibrate.
[1] https://www.dropbox.com/sh/75vmgs6qspjf9q3/Uaw-jNBU9l/List%2...
'Google Effect' seems most common.