images of the author:

(photo credit: NASA)

5x7 .jpg 300dpi (546 Kilobytes)
2x3 .tiff 300dpi (923 Kilobytes)
2x3 .jpg 300dpi (404 Kilobytes)
1x1.5 .tiff 300dpi (231 Kilobytes)
1x1.5 .jpg 300dpi (85 Kilobytes)