kyledawn = published photographer?

during my routine morning email check, i saw that i had an email from someone with a very foreign sounding name. while i do have many foreign friends, this was not a name i recognized at all. well, it was actually an email sent through flickr by a dutch publisher. or someone making a book. they wanted to use one of my italy pictures in the their book!

"It is a richly illustrated, up-market book meant for entertainment during the summer holiday, containing games, photos, stories, places to be, etc. It is a small-scale project by a well-known Dutch weblog www.geenstijl.nl, to be published only in the Netherlands. The expected print run will be 4000. We are hoping to include your photo and hereby want to ask permission for usage."

it sounds very exciting to me! i would love to have one of my pictures published! but for some reason, i have this funny feeling that there is something i need to check out or be clear on or something that i'm not thinking of. what could be a problem with doing this? what do you think?