everytime i pick out a stock, i feel uneasy. i am just buying undervalued stocks by market overreaction just based on intuition, which is very subjective. what i want to know is how others invest? what is the best way to quantitatively determine most of the tangible value of a company? i've heard about value investing, what is the future prospect on this technique? how do you correctly arrive @ the book value of a company ( i am reading security analysis by dodd)? how does mr. buffett do it ? what is your personal favorite approach to investing in stocks? question: should you be sweating in the process of finding a potentially undervalued company? must i be an expert in accounting ? how do you invest with a more business-like vision instead of "oh i think this stocks gonna be hot, *clicks buy" i guess the picture i have in mind is someone pouring over statements and scouring through piles of paperwork, then finding the potential investment. most importantly, how does the selective process begin? do most professional investors utilize some sort of mechanical filtering system that scans for certain ratios ? or do ppl like mr. buffett simply invest in areas that they know best? does he use bloombergs to find new stocks ?