Manipulating data:

• Examining and cleaning dirty data with janitor
• Animations of tidyverse verbs using R, the tidyverse, and gganimate
• Tidylog provides feedback about basic dplyr operations

Plotting:

• ggstance implements horizontal versions of common ggplot2 Geoms, Stats, and Positions
• Top 50 ggplot2 Visualizations
• explore ggplot2 boxplot
• ggrough: convert ggplot2 charts to roughjs
• Column scatter / beeswarm-style plots in ggplot2
• A RStudio addin for ggplot2 theme tweaking
• Extra Coordinate Systems, Geoms, Statistical Transformations & Scales for ‘ggplot2’
• The complete ggplot2 tutorial
• R graphics essentials
• Foundation of data visualization-book
• Data Visulization from STHDA
• ggrepel examples
• adding marginal plots
• photo alignment with graph in r

Colors & Themes:

• Scientific journal and Sci-Fi theme for ggplot2
• ggthemes
• Color palettes for R Pirates
• ghibli: Studio Ghibli colour palettes
• fruit color
• ggpubr: ‘ggplot2’ based publication ready plots
• Collection of most color palettes in a single R package
• BBC style graphics

Statistics

• ggstatsplot: ggplot2 Based Plots with Statistical Details
• groupedstats: Grouped statistical analysis in a tidy way
• dlookr: Tools for Data Diagnosis, Exploration, Transformation
• summarytools

Making websites

• How to make an R Markdown website (with RStudio!)
• Creating websites in R
  

Purrr

• purrr lightning
• Automating exploratory plots with ggplot2 and purrr
• purrr cookbook

Web Scraping

• web scraping
• Web Scraping in R: rvest Tutorial

Resource compilations

• Awesome visualization research
• Data science in a box: R

R workshops

• UCI data science intiti
• Data Science for Statisticians
  

Books

• An Introduction to Statistical and Data Sciences via R
• Learn statistics with R
• R Markdown: The Definitive Guide
• Data Visualization：A practical introduction
• Data Visualization
• Creating ggplot2 extensions
• Hands-on Machine Learning with R
• Practical R for Mass Communication and Journalism
• Chromebook data science
• Interactive Data Visualization
• Efficient R programming

Shiny

• A shiny tutorial
• A gRadual intRoduction to Shiny

Cool packages

• Find image colors
• Visual Resume
• Making visual illusion in R
• Create and share beautiful images of your source code
• Linear Regression using Gradient Descent
• paste data addin
• A set of graphics devices that produces Vector Graphics outputs
• Templates and tools for making a Resume/CV
• Pagedown for resume
• 3D LEGO models and mosaics from images using R