LaTeX is a programming language to typeset documents using TeX and is
widely used in the physical sciences. Most publishers of journals in
astronomy, physics, and mathematics prefer or require authors to use
this language. I use it also for my presentations and even for this
website. It offers extensive facilities to automate most aspects of
typesetting, including numbering and cross-referencing of sections,
tables, figures, pages, contents, indices, and bibliographies. For
the latter, BibTeX automates the citation and reference production.
In astronomy, coupling of LaTeX and BibTeX with the huge
ADS literature database
is particularly efficient.
The first subsection below contains a succinct manual for writing
a report or article with LaTeX and BibTeX, with an example.
The second treats the production of multi-panel figures within LaTex.
The third treats combining LaTex and BibTeX with ADS.