I love "Toltec agreements," 4 principles easy to remember, which have given me a lot. And it's a small book, cheap, quick read, short, a good quality / price ratio. I paid the 5th much more expensive deal, but blah, blah, blah ... Overall I would expect to know how to put this into practice, examples, anecdotes ... there I've already forgotten the 5th Okay, besides that I found the laborious reading.