Book Recommendations: Amusing Ourselves To Death

I really enjoy the following cartoon:

"Amusing Ourselves To Death" http://www.recombinantrecords.net/docs/2009-05-Amusing-Ourselves-to-Death.html

I printed it out on my office wall to remind myself not to be distracted by unproductive reality tv shows, endlessly checking news sites, youtube videos, etc. Like Steve Jobs advocated, it is important to focus on what is important and not get distracted.

I recently stumbled across this book: "The Information Diet: A Case for Conscious Consumption" http://www.amazon.ca/Information-Diet-Case-Conscious-Consumption/dp/1449304680/

I am looking for recommendations for similar books on focusing, limiting distracting, etc. Any suggestions you could provide?

Many thanks.