Recommended Reading: Advanced R Second Edition
After having fully read "Advanced R First Edition"
Try the R Manuals. https://cran.r-project.org/manuals.html There's also some good books by John Chambers.
which explains R Language Core concepts cristal clear,
I'm assuming that you mean "cr${y}stal clear".
and shows the motivation behind libraries such as "rlang", "purrr", "bench", "profvis", "sloop", "lobstr", above others.
Novel != Advanced