Hello, I do lend my for people who ask me but I do have some demands. First, I don't give it out for free, specially when it comes book publishing. Second, you must give me credit for my work, and thrid I ask to be send a copy of the book in question. If you agree with these then you can use it for you book.
Can I use it as the picture on my credit card. Be sure I'd credit you if anyone asks me where I found the picture. I know it sounds weird, but as I have the choice of the picture, I wanted something original and your Wallpaper is very nice.