[1] Learning RStudio for Statistical Computing. M.P.J. Van der Loo, and E. De Jong, Packt Publishers, 2012. ISBN: 9781782160601
R is a free software for statstical computing and visualization. RStudio is productivity tool and an intergrated development environment for developing data-analysis solutions in R. You can download bundled R and RStudio from https://cran.r-project.org/mirrors.html , from the Comprehensive R Archive Network (CRAN).
Install R Studio and study the various regions and features of RStudio.