A book on the core graphics facilities of the R language and environment for statistical computing and graphics (Chapman & Hall/CRC, August 2005).
网址如下：
http://www.stat.auckland.ac.nz/~paul/RGraphics/rgraphics.html
里面没有全文的原书，不过有相当多的R作图的例子，很不错。（这是我从宏能论坛上abel的帖子中发现的，呵呵）
