[R] Books

[Anderson de Rezende Rocha]

Dears, 

I saw in the R-project site some R-books. However, I'm new in this
community and I didn't figure out what are the best books. 

Can you suggest me some "reference" books? My intentions with R is
concerned to Artificial Intelligence simulations, Classification and
general Statistics (e.g., regression, multivariate regression, etc). 

Thanks for any help, Anderson