Thanks alot and this is a sample,
http://www.apress.com/book/downloadfile/336 plz download it from the website it's less than 1MB

One more thing, do you really recommend the Kindle DX for PDF files? I can't tell from the image if it's good or not. I really need your help because I wil paying alot of money in our Egyptian Pounds to get this, and it will be very bad if it's not good.
Thanks again!!!
Mick