Q:

Best chess theory books for beginners

What are the best chess books regarding theory and such for beginners? 

A:

A book often recommended to beginners is Logical Chess: Move by Move by Irving Chernev.  It contains 33 games with text explanations for every single move. 
Dan Heisman also recommends other books in his web site, here are a few:

Chess: The Art of Logical Thinking - Neil McDonald
A First Book of Morphy by del Rosario
Most Instructive Games of Chess Ever Played - Irving Chernev 
Chess Master vs. Chess Amateur - Euwe and Meiden

[edit] Here's a PGN file of Logical Chess that you can play through using a game viewer like Scid vs. PC while you read the book.  Or you can just use a regular chess set. 

A:

It's a bit old, but I cut my teeth on "Chess Fundamentals" by former world champion JR Capablanca.  Moreover, it's one of the few books in the public domain, so you can access it online. 