Russell Davies wrote a book about communicating with Powerpoint. The link references all the books he referred to in the book, there is also an opportunity for you to buy the book online.

Russell gave a brilliant talk at the Communicating Digital Community of practice earlier this year, about using powerpoint effectively to communcate. You can catch up on the recording over on our Youtube channel: https://youtu.be/uE9vEaB4kW0