Author and teacher Roger D. Peng has published R Programming for Data Science. You can find it here at Leanpub/rprogramming. Mr. Peng has been using and teaching R since 1998 (almost 20 years) and his book provides not just a good book on R, but also thoughtful insight into just why R works the way it does, and how to take advantage of R.
OK, need another reason to consider getting this book? All of the sections and chapters have embedded links to YouTube videos.