If you notice slight ANGER and a BLOCKED "THis ain't working, I'm getting nothing" feeling you know you've probably found a book that sucks or that your subconsious is warning you about.

"9 steps to financial freedom" and "Rick Dad/poor Dad" sent me threw the roof because of their RETARDEDNESS (sorry if you're offended but there is no better word) and when i was PRing I got irritated and i couldn't focus and finally I figured it out. You get hunches when you read and they aren't always good.