Living in Los Angeles for over a decade, I’ve seen a lot of head shots. And driving around in practically every city in the country I’ve seen the ugly mug of more real estate agents than I can count on many a bench, bus and billboard. I’ve seen artists put samples of their work on business cards, black and white pictures of animals on books and even the picture of technical authors on the inside jacket of books (for the record my picture has never been in one of my books, although Apress has tried to get me to give them one a few times now). If you’re applying for…