[Ridenour]

Hey guys I'm wondering - Within the next year I plan to write a book. All details of the book itself aside, here's the scoop: I want to be able to sell it online, and don't neccesarily want to get a publisher. How would I go about securing a copyright or a patent-kind-of thing? I just want my book to be protected after I start selling it so that noone else can copy it and sell it. And if I sell it successfully without any protection, that's bound to possibly happen. Anyone here ever written a book, or have any input?