For the guys who have trouble implementing stuff try this:
Its something I've only started doing recently but its a great exercize for sure, be carefull though you might get a bit lost in your own mind (don't read more then one book this way).
Here goes *drums*
Read the book and while reading it view your own life through the writers perspective or mentality.
This is going to require some practice and it'll screw with your mind a bit.
The trick is to become fully associated with the writers viewpoint and basically living your life as though you have the mentality of that particular writer.
For instance reading Ayn Rand's Atlas Shrugged.
I envisioned myself with the mindsets and beliefs of the main characters.
What I would need to do to live my life congruently.
How I would look upon the world.
What would make me happy to do.
What actions would I take right now.
Taking this perspective is like looking in the mirror and critically looking at each part of yourself that might not measure up to that particular mindset.
After a while you'll start to notice that there is this slight push towards taking action thats more congruent with your newly found mindset.
This is when the tricky part comes in.
To prevent that you keep changing direction all the time you need to implement a delay period. Don't change anything untill you finished the entire book.
Then switch back to your 'old' mindset.
It has most likely changed radically, for the better.
This way of reading involves juggling two perspectives or lenses as our honourable Steve calls it at the same time. Evaluating them while your reading.
Incidentally it also allows me to reach much faster, I'm looking for mindsets not a particular technique.
Most PD books aren't so much about new tricks or technique's, they are about realigning your mind towards success.
Doing this everytime you read a book, once a week, will ensure you keep that mindset of achieving everything you dreamed of doing and more importantly becoming everything you dreamed of being.
Good luck.