I found this book to be very useful: Patent Pending In 24 Hrs http://www.amazon.com/Patent-Pending-Hours-Richard-Stim/dp/1413305113/ http://www.amazon.com/Pat

I found this book to be very useful: Patent Pending In 24 Hrs http://www.amazon.com/Patent-Pending-Hours-Richard-Stim/dp/1413305113/ http://www.amazon.com/Patent-Pending-Hours-Richard-Stim/dp/1... I also bought (but haven't yet read): http://www.amazon.com/Patent-Yourself-David-Pressman/dp/1413305164/ http://www.amazon.com/Patent-Yourself-David-Pressman/dp/1413... http://www.amazon.com/How-Make-Patent-Drawings-Companion/dp/1413306535/ http://www.amazon.com/How-Make-Patent-Drawings-Companion/dp/...