If your books are big sellers in your own country, there's a good chance that you'll be able to sell foreign rights, though this depends on genre. (ian-irvine.com)
After the color, the second big seller for me to even try on the dress was the price tag. (ladyinviolet.com)
I wrote a couple eBooks, definitely not big sellers, and did it through self - publishing. (happyselfpublisher.com)