This may sound silly, but actually read the book. Then, pretend that you are describing the book to your professor in a lineal fashion (from beginning to end). You may even want to practice by telling your friends about the book you are reading or have just finished reading.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.