Please help with my sales letter

I've had this sales letter for a couple of years and it's not performed very well. I'm looking for some advice from people who have experience with this kind of thing.

http://poweressence.com/evolve

I realise I need bonuses, but what else can I do to improve it?

Also I realise that the book itself is a little broad, but I don't really have the time to break it up and specialise it at the moment, although this is something I will look into in the future.

Any help appreciated.

 

My opinions...the headline doesn't really pull me in...and just scanning the page, which many visitors will do does not highlight your benefits...just my 2 cents

 

I would advise to improve the design, for cheap solutions I suggest http://prolandingpages.net or for a custom solution check out my portfolio: http://tooschee.com and we can work something out if You'd be interested

 

Yes you need to have an attention grabbing headline while also being able to keep the viewers attention.

 

it looks really nice. you can get one step further and offer first part (pdf) of the book free with a free signup.

you could reduce the size of the text before "Still not convinced?" - move it to that 1st part of the book that is free.
Than put "Still not convinced?" - get first part of the book free.
at the end of that free part (pdf) put a link back to your website for ordering the rest