Latex Packages:

There are many Latex packages available which can be used with the conventional latex to make the document fancier. For an example to fix the size of the text on the paper or to fix the geometry of the paper, there are some commands like \topmargin, \headsep etc. But the same can be done using the geometry package by adding \usepackage{geometry} and adding the command \geometry{Parameters List}.  There are some packages given here. To use it and to know about it, first uncompress it by using the tar -zxvf filename.tar.gz or tar -zxvf filename.tgz e.g. tar -zxvf geometery.tar.gz. It it is a file in zip format then uncompress it command unzip. Then view the readme or Readme or README file and following the same as mentioned in the file. The list of the packages listed with their downloadables is:

You can also download the packages from the sites http://star-www.rl.ac.uk/~acc/tex/packages.html or http://www.tex.ac.uk/.