My favourite visualisation packages in R

Over the past two years I’ve used R within RStudio environment as my only data analysis/visualisation application for my research. For the most part I’m a self-taught R/RStudio user, and I’m quite pleased with how far I’ve come in terms of being able to do pretty much everything I need in terms of data analysis and visualisation, and a significant part of writing up using RMarkdown in RStudio. In terms of data visualisation in R, I guess ggplot2 is what everybody turns to first, and I’m no exception.