Humble Book Bundle: Hacks presented by O'Reilly

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Humble Book Bundle: Hacks presented by O'Reilly

$1 for:

Perl Hacks
BSD Hacks
Mind Hacks
Gaming Hacks
Kinect Hacks

$8 and also receive:

Baseball Hacks
Car PC Hacks
IRC Hacks
Astronomy Hacks
Raspberry Pi Hacks
Statistics Hacks
Home Theater Hacks

$15 and also get:

HTML5 Hacks
Excel Hacks 2ed
Retro Gaming Hacks
SQL Hacks