R for Data Science is one of the most popular introductions to data science in R. The second edition covers the whole data science workflow:
- Importing data from files, spreadsheets, databases and the web
- Tidying and transforming data with the tidyverse
- Visualising data with ggplot2
- Writing functions and iterating
- Communicating results with Quarto
Although it is not specific to healthcare, the skills it teaches apply directly to day-to-day work in health and care analytics.
You can read the book for free at https://r4ds.hadley.nz.