LaTeX can be used to produce a variety of different charts and diagrams, including: flowcharts, gantt charts, pie charts, branching and decision trees, family trees, histograms, bar charts and more. If you're looking for a particular type of chart that isn't featured here, please let us know, or submit your own example to the gallery.
pgf-pie is a LaTeX package for drawing pie charts (and some interesting variants on pie charts) with the PGF/TikZ graphics package.
The examples in this document are from the pgf-pie manual, version 0.2.
The source code for pgf-pie is available at http://code.google.com/p/pgf-pie/.
These examples show how to make Gantt charts for project planning in LaTeX with the pgfgantt package. They are from the package documentation. The pgfgantt package provides many useful macros for generating the calendar for the Gantt chart for either absolute or relative dates. It also provides macros for grouping and linking tasks, and for full control over the styling of the chart.
With this simple LaTeX template you can quickly create and share your family tree online with friends and relatives.
For help with different styles, see this guide to trees in LaTeX on the excellent LaTeX Community forum, and you can find help with using the TikZ package in Part 3 of our free Introduction to LaTeX course.