How to draw simple two classification chart in LaTex?

Question

I need to draw following chart in latex format. Currently i put it as image. Need some expert help to do it simplest way.

-------updated ----------------------------- According to given link in comment i will create tree like this,how i can format that text like given image and put two , trees side by side in same reference?

    \begin{tikzpicture}[level distance=1.5cm,
  level 1/.style={sibling distance=3cm},
  level 2/.style={sibling distance=1.5cm}]
  \node {Cryptography}
    child {node {cryptos}
      child {node {hidden}}
    }
    child {node {graphia}
    child {node {writing}}
    };
\end{tikzpicture}

Answer 1

Your best option is to use TikZ, but this will work and it uses no extra package:

\documentclass[12pt]{article}
\begin{document}
\begin{center}
  \begin{tabular}{ccc}
    \Large Cryptography&\qquad&\Large Stenography\\[1ex]
    \Large$\swarrow\qquad\searrow$&&\Large$\swarrow\qquad\searrow$\\[1ex]
    \textit{cryptos}\qquad\textit{graphia}&&\textit{steganos}\qquad\textit{graphia}\\[1ex]
    \Large$\downarrow$\qquad\qquad$\downarrow$&&\Large$\downarrow$\qquad\qquad$\downarrow$\\[1ex]
    hidden\qquad writing&&covered\qquad writing
  \end{tabular}
\end{center}
\end{document}

Answer 2

You can use the font key to set the font style and size.

Here's a solution using TikZ:

\documentclass{standalone}
\usepackage{tikz}
\usetikzlibrary{trees}
\begin{document}
\begin{tikzpicture}[
        ->,
        font = \Large,
        level distance = 1.5cm,
        level 1/.style={
            font = \normalfont\sl,
            sibling distance = 3cm
        },
        level 2/.style = {
            font = \normalfont\large,
            sibling distance = 1.5cm
        }
    ]
    \node {Cryptography}
        child {node {cryptos}
            child {node {hidden}}
        }
        child {node {graphia}
            child {node {writing}}
        };
    \node[xshift = 5cm] {Steganography}
        child {node {steganos}
            child {node {covered}}
        }
        child {node {graphia}
            child {node {writing}}
        };
\end{tikzpicture}
\end{document}