Most of you have heard of this book series since it started becoming a series of movies. It has become so because these books are really really good.
At the heart of The Hunger Games is some wonderful characters. Katniss is an introverted strong-willed young lady who is a marksman bow hunter. Peeta is an extroverted son of a baker who always knows what to say to win a crowd. Haymitch is a drunken carefree man who has to coach these two to win the Hunger Games.
The Hunger Games is an annual event where two adolescents from each district in society are chosen in a drawing so they can be thrown into an arena to fight to the last person alive. An exhibition the president holds to demoralize the population so they won't try to rebel against the government. That is the beginning plot in a nutshell. These books are rated teen, but a word of caution is in the third book it does get quite gory in a couple places. I'm not sure what they will do in the movies to make these sections PG-13. The rest of the books are no more gory than Lord of the Rings.
All in all The Hunger Games is a great series of books with a good message of don't let the government have too much power. It is a great science fiction read.