Beginning R by Mark Gardener is the best introductory book to R + Statistics, especially for those who have limited time.
If you are learning to program Statistical stuff in R, I think Beginning R by Mark Gardener is one of the best books out there.
I also run a 7-week workshop teaching introductory R (non-statistics) available for free - https://github.com/nvenkataraman1/RProgrammingWorkshop. There's a booklist I've shared on my page.