Numbering appendices by letter instead of number

Question

I'm trying to get a hold of numbering the letter of the appendices. This is how it looks now:

\documentclass[11pt, a4paper, twoside]{article}

% PACKAGES
\usepackage{geometry}
\usepackage{lipsum}        

\begin{document}
\tableofcontents

\section{First section}
\subsection{A subsection}
\lipsum[1]

\appendix
\section{Appendices}
\subsection{First appendix}
\subsection{Second appendix}

\end{document}

But instead of counting the numbers

A.1
A.2
...

I want to the letters to be increased. It should be something like this:

Appendices
A - first appendix
B - second appendix
C - third appendix

where "Appendices" is a section, and the other are subsections.

I hope that anyone can help me :)

Answer 1

If you really need the appendices to be subsections you can change numbering of subsections using \renewcommand{\thesubsection}{\Alph{subsection}}:

\documentclass[11pt, a4paper, twoside]{article}
\usepackage{geometry}
\usepackage{lipsum}

\begin{document}
\tableofcontents

\section{First section}
\subsection{A subsection}
\lipsum[1]

\appendix
\section*{Appendices}
\addcontentsline{toc}{section}{Appendices}
\renewcommand{\thesubsection}{\Alph{subsection}}

\subsection{Appendix Subsection}
\subsection{Another appendix Subsection}
\end{document}

Answer 2

Use \section*{Appendices}and add this to the toc with \addcontentsline. Then simply use \section for each appendix.

\documentclass{article}
\begin{document}
\tableofcontents
\section{First section}
\subsection{A subsection}
\appendix
\addcontentsline{toc}{section}{Appendices}
\section*{Appendices}
\section{First appendix}
\section{Second appendix}
\end{document}

Answer 3

I find it easier to simply use:

\appendix
\renewcommand{\thechapter}{A}

and just change it for each appendix:)

Answer 4

\section*{A: Section heading}

OR

\section*{Section A: Section heading}

OR

\section*{Part A: Section heading}