"Big graphs are not the only way to visualize data in a text
document. Using a couple of tricks, you can spice up your
OpenOffice.org Writer documents with sparklines--word-sized graphs
embedded into text. Developed by infographic guru Edward Tufte,
sparklines provide a simple yet effective way of visualizing data
directly in the text body of the document.
"Although OpenOffice.org doesn't provide a dedicated sparkline
feature, there are several ways to add sparkline graphics to your
documents. For starters, you can manually construct sparklines
using OpenOffice.org's own charting tools..."