I'd advise anyone that wants to start a company to toss all those books out, and to spend the time building.
Someone recommended reading Founders at Work to me yesterday, which I'm sure you've heard of, not because it tells you how to found a startup but because the advice is so wonderfully contradictive. It supposedly shows by example that there are no good ways of doing things, that really nobody knows what the hell they're doing anyway, so just do what works for you and figure out a way to combat your blind spots.
I have the luxury of working half to most of my week on a sort-of-startup. I'm saying sort-of because it's a government-funded pilot project to develop a new mobility app to compete with Uber and Google Maps, so it's a startup with a safety net. It's wonderful to still be at the stage where we can be so nimble and change course today if we have to.