need your help with a book or website for remodeling / framing a room

My son is thinking about moving back in and we discussed making a room for him at the end of the enclosed porch on the back of the house. I would need to be insulated, a wall framed to close in the room and a wall to close in a window and insulate on the back of the house inside what would be his room. His dad can do the electrical work, there is already electricity out there. I know my way around a jig saw and hammer and am fairly handy and not afraid to try. Besides I will need a winter project. Does anyone know of a good website with visuals or a book that can walk me thru it? Everyone tells me it shouldnt be hard to do at all its just that no one offered to do it. It is strickly interior work and no knocking down or going thru walls.

 

I didnt find anything that went into much detail or had pictures to go with it. Im a visual person, I also need to see how its supposed to look.