Yup, boat company's are way to small to have manuals like a car does.
Normally all you get with a new boat is the paperwork for the stereo ect.
Like Silvertip said, nothing real technical, but get to know the boat and where everything is before you go out
Look up a boater safety coarse in your area, the water is a totally different deal than the road.
Boats and cars have steering wheels and burn gas, similarities end there