# How to remove part and section numbers from titles

Using XeLaTeX and Book package.

I'd like to remove "part #" and "section #" from the \part and \section titles, thus keeping the part and section titles only. How can I accomplish this?

Thanks in advance for any help.

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the class book has no leading section for \section. I suppose you mean "chapter". –  Herbert Jun 6 '12 at 6:36
If you want that no sectional unit is numbered, then say \setcounter{secnumdepth}{-2} before \begin{document}. Otherwise, please state better your problem. Welcome to TeX.SX! –  egreg Jun 6 '12 at 9:31
Since you have a response below that seems to answer your question, please consider marking it as ‘Accepted’ by clicking on the tickmark below its vote count (see How do you accept an answer?). If it does not answer your question, feel free to add some more information. –  brian-ammon Dec 1 '12 at 22:59

Confer the Wikibooks article on Section numbering:

“To get an unnumbered section heading which does not go into the Table of Contents, follow the command name with an asterisk before the opening curly brace: \subsection*{Introduction}. […] If you want the unnumbered section to be in the table of contents anyway, use the \addcontentsline command like this:

\section*{Introduction}

For more info (PDF bookmarks for the unnumbered chapters, clearing the page after \chapters) please see the Wikibooks article.