Read: Maximize Your Potential
While each individual chapter of Maximize Your Potential reads rather nicely the whole compilation does not add much. The articles do not build on each other so there is no logical progression, when they are based on research it's not the author's and more often than not it's just one single older study that has been refuted since.
Bottom line: it would have been more reasonable just reading u99's blog than buying this little book. I consider it a donation.