# Marginnote on left side only, using document class book with twoside

I'm trying to use marginnote on document class book with twoside, but I can't see to get the margin notes strictly on the left. I don't want to be putting \reversemarginpar on all the odd pages. Can someone help me or direct me to help please.

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Welcome to TeX.sx! It's always good to provide add a minimal working example (MWE) that illustrates your problem. That speeds up providing solutions since the community does not have to create their own from scratch. –  Werner Sep 18 '12 at 20:48
–  lockstep Sep 18 '12 at 20:50

You can use the etoolbox package to patch the \@mn@margintest command to set \if@tempswa to be always true and then issue a global \reversemarginpar:

\documentclass[twoside]{book}
\usepackage[centering,marginparwidth=2.5cm,paperheight=10cm]{geometry}
\usepackage{marginnote}
\usepackage{lipsum}
\usepackage{etoolbox}

\makeatletter
\patchcmd{\@mn@margintest}{\@tempswafalse}{\@tempswatrue}{}{}
\patchcmd{\@mn@margintest}{\@tempswafalse}{\@tempswatrue}{}{}
\reversemarginpar
\makeatother

\begin{document}

\lipsum[1]\marginnote{test test test test test}
\lipsum[1-2]\marginnote{test test test test test}
\lipsum[1-2]\marginnote{test test test test test}
\lipsum[1-2]\marginnote{test test test test test}
\lipsum[1-2]\marginnote{test test test test test}
\lipsum[1-2]

\end{document}


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Gonzalo Medina, thank you so much!!!!!!!!!!!!!!! It works perfect! –  jorge aldana Sep 22 '12 at 18:36
If you want it on the right instead, leave off the \reversemarginpar in Gonzalo's answer. I'm mentioning this because it took me a bit to figure it out. Also it is much simpler than Gonzalo's answer to the same problem here. (This should be a comment, but I don't have have enough reputation.) –  Jason Rute Apr 21 '13 at 4:10