books

i've got holidays for the next couple months and i've got no social life or off-line friends to speak of.
what are some good text books i can read during this time?
any subject is fine really, as long as it's somehow related to computers.
and by 'good' i mean detailed and thorough, not fun to read.

________  _________    ______        ______
________  __________   ______        ______
   __     __     ___     ____        ____
   __     _______        __   __   __   __
   __     _______        __   __   __   __
   __     __     __      __    _____    __
________  _________    ____     ___     ____
________  ________     ____      _      ____

is your new big blue god