Real world code doesnt suck in my opinion. The issue is that a lot of the time it solves problems that these books don't need to. Its easy to build an alogirthm and print it when you know every edge case.

If you would take the first version of most production code put it in a book and write the problem it solves, I'm sure you wouldn't think it sucks. My exp developer 15years, finance industry 7.