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A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

{diagrams} is for general questions about vector graphics created programmatically inside a (La)TeX document. For questions about specific packages, use the appropriate tag, e.g. {tikz-pgf} or {pstric…
{lyx} specifically is for questions about the LyX document-authoring application, that uses LaTeX for typesetting. Check that your problem isn't really a LaTeX problem before using this tag: export y…
{lists} is about list environments. If your question deals with a specific list environment, such as {itemize}, {enumerate}, or {description}, add that tag along with this one. {enumitem} is a popular…
2955 questions
{footnotes} is about typesetting footnotes. Popular packages are {footmisc}, {footnote}, and {bigfoot}.
{positioning} is about positioning document elements. Use this tag in addition to other tags specifying what should be positioned.
{line-breaking} is about how (La)TeX breaks paragraphs into lines and how those breaks can be influenced.
{pdf} is specifically about the PDF file format. If your question is about producing PDF output, choose an appropriate tag such as {pdftex} or {ps2pdf}. If your question concerns PDF reader software, …
{margins} is about dealing with (above all, changing) the margins of (whole) pages and, conversely, the width and height of the textblock and its positioning on the page. Popular packages are {geometr…
{longtable} is for questions relating to the use of the longtable package, which allows for making tables that can be broken across pages.
MiKTeX is a widely used TeX distribution available for Windows.
2581 questions
{enumerate} is about the enumerate list environment. If you use this tag, add the more general {lists} tag.
{tcolorbox} provides an environment for colored and framed text boxes with a heading line. Optionally, such a box can be split in an upper and a lower part. The package can be used for the setting of…
{chapters} is about the \chapter command which is one of the sectioning commands forming the logical structure of documents. This tag should only be used *in addition* to the more general {sectioning}…
KOMA-Script is a bundle of classes and packages replacing the LaTeX standard classes and providing additional features with emphasis on typography and versatility.
2328 questions
{fontspec} is a package for loading {opentype} fonts in XeLaTeX and LuaLaTeX.
{titles} is about typesetting document titles, usually with the help of \maketitle or the titlepage environment. A popular package is {titling}.
{natbib} is a package for bibliographies and citations. It is especially designed for the author-year type citation styles that are common in the natural and social sciences.
{tabularx} is a package that defines an environment tabularx, an extension of tabular which has an additional column designator, X, which creates a paragraph-like column whose width automatically expa…
{page-breaking} is about how (La)TeX breaks pages (and, in multi-column documents, columns) and how page/column breaking can be influenced.
{memoir} is a document class designed especially for book-length documents. It incorporates the functions of many independent packages into one class.
TeX Live is a widely used TeX distribution available for Windows, MacOS, Linux, and other Unix-like operating systems.
2208 questions
{compiling} is about the process you must go through to convert your TeX from .tex source files into your output document format, be it pdf, dvi, or something completely different.
2082 questions
{tikz-arrows} is about questions related to the arrow head specifications in the arrows library of the TikZ/PGF graphics package. If the question is not specifically addressing an issue related to the…
PSTricks is a set of macros that allow the inclusion of PostScript code (e.g. drawings) directly inside (La)TeX code. This tag is compatible with the tag {diagrams}.
2035 questions
{indentation} is about the first-line indentation of normal {paragraphs} as well as about the indentation of, e.g., {lists}, {quoting} environments, {captions}, and the various elements (sectioning nu…
2024 questions
{texstudio} is about the LaTeX editor TeXstudio, formerly called TexMakerX. It is a fork of another editor called Texmaker, which has its own tag {texmaker}.
2008 questions
{tikz-styles} are predefined sets of options that organize how graphics elements are drawn. It is thus possible to program specific styles and reuse the styles on different objects. The {tikz-styles} …
{fontsize} is about selecting a document's standard font size (with class options like 12pt), changing relative font sizes within a document (with macros like \small or \large), and defining or modify…
2002 questions
{tex-core} is for questions for syntax, semantics and expected behavior of TeX primitive control sequences, regardless of extensions (eTeX, etc.) formats (Plain or LaTeX) and macro packages (tikz). Su…
1994 questions
{matrices} is about matrices in {equations} and {diagrams}.
Overleaf (formerly WriteLaTeX) is a collaborative online LaTeX editor. Please don't use this tag for general LaTeX questions but only for those, where the use of Overleaf is relevant to the problem.
{subfloats} is about small "sub"-figures and "sub"-tables within a single (floating) figure or table environment. For questions specifically about formatting a subfloat's caption, consider to use {sub…
1948 questions
{page-numbering} is about how (La)TeX numbers pages and how page numbering can be influenced.
1896 questions
Biber is a {bibtex} replacement for {biblatex}. It is functionally a significant superset of BibTeX, allowing more customisation by the user of, e.g., sorting, label generation, inheritance, and data …
{fancyhdr} is a package which allows the creation of custom page headers and footers.
{conditionals} is about macros like \if and \ifx that may execute other macros depending on whether certain conditions are true or not. Popular packages are {etoolbox} and {ifthen}.
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