A new online textbook, Data Visualization for Social Science, will teach you everything you need to know about creating beautiful and elegant data visualizations using the ggplot2 package and the R language. The author Kieran Healy is a professor of Sociology at Duke University who has designed data visualizations featured in outlets like The Washington Post, Vox, The Rachel Maddow Show, Slate, and the Boston Globe. While the data sets featured in the book are generally from the social sciences, the book nonetheless provides an excellent introduction to visualization with R for any domain. This book is not a general...