Printing book on two-sided document

[Luca Carlon]

Hi! Tomorrow I will have to print my final thesis, and I'll have it 
binded. So, I checked in LyX the "two-sided document" checkbox, to have 
it on the two sides to create the book, but I noticed something strange. 
I suppose this is not LyX related, but I don't know: the created 
document is, of course, different when the page is on the right side or 
on the left side, but I noticed as well that the column is not centered, 
and that the wider free space is on the side of the page that will be 
binded. I mean, if the page is a right page, the wider free space is on 
the right, and the column with the text is moved a little on the left. 
Isn't this strange? Shouldn't the wider free space of the page be on the 
side of the page that is going to be bided? Is this correct or maybe 
I've done something wrong?
Than you very much for any help guys (and thank you for all the support 
you have been giving me during my work on my thesis! :-))!
--
Luca Carlon
Computer Engineering Student
University of Padua (Italy)