Cfxtrjtrk

I want to add a description "column a" for the first column, "column b" for the second column, "column c" for the third column. How to do that?

documentclass{article}

begin{document}

begin{figure}[h!]

      includegraphics[width=0.32textwidth]{example-image-a}

      includegraphics[width=0.32textwidth]{example-image-b}

      includegraphics[width=0.32textwidth]{example-image-c}



      includegraphics[width=0.32textwidth]{example-image-a}

      includegraphics[width=0.32textwidth]{example-image-b}

      includegraphics[width=0.32textwidth]{example-image-c}



      includegraphics[width=0.32textwidth]{example-image-a}

      includegraphics[width=0.32textwidth]{example-image-b}

      includegraphics[width=0.32textwidth]{example-image-c}

      caption{Column A $rightarrow$ Column B $rightarrow$ Column C. }

end{figure}



end{document}

A solution with tabular for more control:

documentclass{article}

usepackage{graphicx}

begin{document}

begin{figure}[h!]

begin{tabular}{c@{hspace{1.5mm}}c@{hspace{1.5mm}}c}

      includegraphics[width=0.32textwidth]{example-image-a}&

      includegraphics[width=0.32textwidth]{example-image-b}&

      includegraphics[width=0.32textwidth]{example-image-c}\[0.1mm]

      includegraphics[width=0.32textwidth]{example-image-a}&

      includegraphics[width=0.32textwidth]{example-image-b}&

      includegraphics[width=0.32textwidth]{example-image-c}\[0.1mm]

      includegraphics[width=0.32textwidth]{example-image-a}&

      includegraphics[width=0.32textwidth]{example-image-b}&

      includegraphics[width=0.32textwidth]{example-image-c}\[0.1mm]

      (a) &

      (b) &

      (c)

      end{tabular}

      caption{Column A $rightarrow$ Column B $rightarrow$ Column C. }

end{figure}



end{document}

A solution with subfigure:

documentclass{article}

usepackage{graphicx}

usepackage{subcaption}

begin{document}

begin{figure}[h!]

    begin{subfigure}[t]{.32linewidth}

      includegraphics[width=linewidth]{example-image-a}

      includegraphics[width=linewidth]{example-image-b}

      includegraphics[width=linewidth]{example-image-c}

      caption{Column A $rightarrow$}

end{subfigure}

begin{subfigure}[t]{.32linewidth}

      includegraphics[width=linewidth]{example-image-a}

      includegraphics[width=linewidth]{example-image-b}

      includegraphics[width=linewidth]{example-image-c}

      caption{Column B $rightarrow$}

end{subfigure}

begin{subfigure}[t]{.32linewidth}

      includegraphics[width=linewidth]{example-image-a}

      includegraphics[width=linewidth]{example-image-b}

      includegraphics[width=linewidth]{example-image-c}

      caption{Column C. }

end{subfigure}

caption{Caption for all the three subfigures}

end{figure}

end{document}

Use Subfigures, see related question.

documentclass{article}

usepackage[utf8]{inputenc}

usepackage{graphicx}

usepackage{caption}

usepackage{subcaption}







begin{document}

begin{figure}[t]

centering

    begin{subfigure}[t]{0.32textwidth}

      includegraphics{a}

      includegraphics{a}

      includegraphics{a}

      subcaption{caption of Column A}

    end{subfigure}

    begin{subfigure}[t]{0.32textwidth}

      includegraphics{b}

      includegraphics{b}

      includegraphics{b}

      subcaption{caption of Column B}

    end{subfigure}

    begin{subfigure}[t]{0.32textwidth}

      includegraphics{c}

      includegraphics{c}

      includegraphics{c}

      subcaption{caption of Column C}

    end{subfigure}

caption{Caption of all the figures }

end{figure}



end{document}

You are able to nest subfigures within the figure-environment.