Example: A descriptive diagram of TikZ tasks

% A descriptive diagram of TikZ tasks
% Author: Stefan Kottwitz
% https://www.packtpub.com/hardware-and-creative/latex-cookbook
\documentclass[border=10pt]{standalone}
\usepackage{smartdiagram}
\begin{document}
\smartdiagram[descriptive diagram]{
  {Style,{Define shapes, colors, shading,
          and line styles for nodes and arrows}},
  {Position, {Place nodes using a matrix,
              relative or absolute positioning}},
  {Relation, Insert edges or arrows
             between selected nodes},
  {Label, Add labels on edges or arrows}}
\end{document}