how to defeat your own clone.

Discuss the book. What were the three most significant ideas, technologies or concepts you learned from reading the book? In what context was each idea technology or concept introduced in the book? why was each significant?
would you recommend this book for future use in this class? why or why non?
I dont care why not cuz it is not related to my Major “mechanical engineering”.
my teacher is strict about this paper “no identical work to this paper”