title_body: Is there any way to read an technical ebook quickly? I am reading a technical computing science ebook. I want to know if is there any software or way so that I read only the relevant content only( which is important) ?
upvoted_answer: Yes there is a bunch of techniques.
  short time ago i found a new one, called spritz.
  http://youtu.be/slYKEKtYW-I
  
  Other techniques are: speedreading, photoreading etc.