I don't think that books are a good idea for really, really beginning poker players. Most of them will introduce concepts that might confuse.
Until you have several thousand hands behind you I think it is better to use some of the free training stuff on t'Interwebs. The YouTube ones mentioned by BearPlay are good as are many of the PokerVIP (pokervip.com) ones since in many of them the presenter explains their thinking as the hand progresses. I also quite like The Poker Bank (thepokerbank.com) videos particularly those by SplitSuit. His are divided into beginner, intermediate and advanced and he also explains his thinking well as he goes along. Not to forget the poker schools run by some of the major sites like PartyPoker
, FullTilt and PokerStars
All of the books mentioned in this thread are good but it is difficult to recommend any as different ones suit different types of players. For example the Sklansky ones have a tendency toward poker math, as you have probably discovered, whilst others deal more with strategy.