Reddit mentions of The Technological Singularity (MIT Press Essential Knowledge series)

The most obvious answer is Bostrom's Superintelligence, and you can indeed find more info on this whole topic on /r/ControlProblem. (So basically I agree 100% with /u/Colt85.)

The other book closest to what you're asking for is probably Roman Yampolskiy's Artificial Superintelligence: A Futuristic Approach (2015). I would also recommend his and Kaj Sotala's 2014 Responses to catastrophic AGI risk: a survey, which isn't a book, but does provide a great overview.

Wendell Wallach & Colin Allen's Moral Machines: Teaching Robots Right from Wrong (2010) does talk about methods, but is not necessarily about superintelligence. There are also some books about the dangers of superintelligence that don't necessarily say what to do about it: 1) Stuart Armstrong's Smarter Than Us: The Rise of Machine Intelligence (2014), 2) James Barrat's Our Final Invention: Artificial Intelligence and the End of the Human Era (2015), and 3) Murray Shanahan's The Technological Singularity (2015). And probably many more... but these are the most relevant ones I know of.

Absolutely loved the movie, left the theater still with chills down my spine imagining a future with such an artificial intelligence as presented here.

I was also very happily surprised to see at the end credits that the AI advisor to the movie was the professor I've done my AI master's thesis with, he is a really great guy! For those interested, he's a got a great introductory and accessible book on AI and the singularity. If you enjoyed the movie I think you'll enjoy this too.