LaTeX book class: Twosided document with wrong margins

Question

I am trying to write my thesis in latex... Cannot get the layout straight though :? I'm using the following document class:

\documentclass[11pt,a4paper,twoside,openright]{book} 

My problem is: on the odd numbered pages there is a big margin right, and a small margin left - it should be the other way round... (for binding & stuff) I am a little puzzled by this -- am I just to stupid to see the obvious? The odd page numbers appear on the 'right' page of a bound document, so there needs to be a larger gutter margin on the left for binding -- and vice versa. Right?

Why does LaTeX not behave like this?

Here is the full code to produce a small Tex file that shows my problem:

\documentclass[11pt,a4paper,twoside,openright]{book} \begin{document} \chapter{blah} Lorem ipsum ius et accumsan tractatos, aliquip deterruisset cu usu. Ea soleat eirmod nostrud eum, est ceteros similique ad, at mea tempor petentium. At decore neglegentur quo, ea ius doming dictas facilis, duo ut porro nostrum suavitate. \end{document} 

Edit: I know about a lot of ways to manually specify the page margins, like

\setlength{\oddsidemargin}{53pt}   

or ...

\usepackage[lmargin=1cm,rmargin=2.5cm,tmargin=2.5cm,bmargin=2.5cm]{geometry} 

I just wanted to use the default settings and don't understand why they do not behave as expected.

Answer 1

I had the same problem. Anyhow, here the "simple" solution (put it in your preamble):

\let\tmp\oddsidemargin \let\oddsidemargin\evensidemargin \let\evensidemargin\tmp \reversemarginpar 

Cheers, Chris

Edit: Contrary to the previous solutions, the provided code does not change the style of the document :)