The following manuals for R are downloadable as PDF files:

• An Introduction to R (approx. 100 pages, 650kB), based on the former "Notes on R", gives an introduction to the language and how to use R for doing statistical analysis and graphics.

• A draft of the R language definition (approx. 60 pages, 400kB) which document the language per se. That is, the objects that it works on, and the details of the expression evaluation process, which are useful to know when programming R functions.

• Writing R Extensions (approx. 85 pages, 500kB) covers how to create your own packages, write R help files, and the foreign language (C, C++, Fortran, ...) interfaces.

• R Data Import/Export (approx. 35 pages, 270kB) describes the import and export facilities available either in R itself or via packages which are available from CRAN.

• R Installation and Administration (approx. 30 pages, 200kB)

• The R Reference Index (approx. 2150 pages, 11MB) contains all help files of the R standard and recommended packages in printable form.