LaTeX is a document markup language document preparation system for the TeX typesetting program. Note that http://tex.stackexchange.com is specifically dedicated to LaTeX (and TeX) questions.
LaTeX is a document markup language and document preparation system for the TeX typesetting program.
There is a Stack Exchange site dedicated to LaTeX (and TeX, and other related technologies), which is a good place to ask any LaTeX-related questions.
Other resources
A great many problems can be solved by selecting the right existing macro package from CTAN.
