Ask HN: 'Must read' books

Masters of Doom (not finished, just started reading it, great so far)

Rework: http://37signals.com/rework/

-Stumbling on Happiness

It's not that you should read and implement it verbatim. It's a great read in terms of getting you into different mindset.

That book only applies to you if you have a very flexible schedule.

The 4 Hour Workweek

running lean

Design is Job - Mike Monteiro by A Book Apart (Really basic stuff for people starting with agency/freelance work, but really good).

"Do more faster" by David cohen and Brad feld. A must have book.

A great scifi book that also mixes in entrepreneurial concepts is "Infoquake."

Applied Cryptography, Second Edition: Protocols, Algorithms, and Source Code in C

Baked In from Alex Bogusky and John Winsor (About C+P agency)

-Free Software, Free Society

Learn Ruby The Hard Way for people starting.