That is the earth taken from Apollo 17, "The Big Blue Marble." As far as a rational income, that debatable because I making more monthly than I ever have from my books, but it's not a living income. It seems that unless you are a known author or in a specialty niche, books have become like TV shows. Readers are always looking for the next new show and book surfing, just like they channel surf. I have noticed that I have made some progress selling higher priced books now that readers have become hooked on the works that were $.99. Tying the books together in a series has also served to draw readers to the entire series instead of just reading one book and moving on.