I doubt there is a book that you can read that will make you sound like a seasoned startup guy. You are already in the industry, so know your own pitch deck and

I doubt there is a book that you can read that will make you sound like a seasoned startup guy. You are already in the industry, so know your own pitch deck and know your own business inside and out. Know about your competitors, and know and understand the key pressure points in your own business model. I think if you can do that you will sound like a startup guy--with a bit of seasoning in your own business. Good Luck!