Here is the LaTeX code to inserto two images of different dimensions and a caption in this format: The code uses minipages (as usual!) to solve this problem. begin{figure*} begin{minipage}[t]{.6linewidth}vspace{0pt} includegraphics[width=linewidth]{image1.eps} label{fig:image1} end{minipage} hfill begin{minipage}[t]{.4linewidth}vspace{0pt}raggedright begin{minipage}[t]{linewidth}vspace{0pt}raggedright includegraphics[width=linewidth]{image2.eps} label{fig:image2} end{minipage} begin{minipage}[t]{linewidth}vspace{20pt}raggedright caption{Caption […]} label{fig:spidx} end{minipage} end{minipage} end{figure*}