In a few places on this site, such as this question, the shapes.letters package is mentioned:
I would like to use it. So I download pgflibraryshapes.letters.dtx from here, and try to compile it. How do I do this? If I hit it with latex I get 'LaTeX error: Missing \begin{document}', and if I hit it with tex I get 'missing $ inserted'. What am I doing wrong?
tikz(and load it\usepackage{tikz}) – Sigur Jan 19 '15 at 13:22