Kieran Healy, Data Visualization: A Practical Introduction. Forthcoming. Princeton University Press. Preorder on Amazon

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Data Visualization: A Practical Introduction teaches you data visualization using R and ggplot2 in a clear, sensible, and reproducible way.

 

Endorsements

“Finally! A data visualization guide that is simultaneously practical and elegant. Healy combines the beauty and insight of Tufte with the concrete helpfulness of Stack Exchange. Data Visualization is brimming with insights into how quantitative analysts can use visualization as a tool for understanding and communication. A must-read for anyone who works with data.” — Elizabeth Bruch, University of Michigan

“Healy’s fun and readable book is unusual in covering the ‘why do’ as well as the ‘how to’ of data visualization, demonstrating how dataviz is a key step in all stages of social science—from theory construction to measurement to modeling and interpretation of analyses—and giving readers the tools to integrate visualization into their own work.” — Andrew Gelman, Columbia University

“Data Visualization is a brilliant book that not only teaches the reader how to visualize data but also carefully considers why data visualization is essential for good social science. The book is broadly relevant, beautifully rendered, and engagingly written. It is easily accessible for students at any level and will be an incredible teaching resource for courses on research methods, statistics, and data visualization. It is packed full of clear-headed and sage insights.” Becky Pettit, University of Texas at Austin

“Healy provides a unique introduction to the process of visualizing quantitative data, offering a remarkably coherent treatment that will appeal to novices and advanced analysts alike. There is no other book quite like this.” — Thomas J. Leeper, London School of Economics

“Kieran Healy has written a wonderful book that fills an important niche in an increasingly crowded landscape of materials about software in R. Data Visualization is clear, beautifully formatted, and full of careful insights.” — Brandon Stewart, Princeton University

“Healy’s prose is clear and direct. I came away from this book with a much better understanding of both visualizations and R.” — Neal Caren, University of North Carolina at Chapel Hill

“Innovative and extraordinarily well-written.” — Jeremy Freese, Stanford University

Data Visualization: A Practical Introduction

 

Summary

Through a series of worked examples, the book shows you how to build plots piece by piece, beginning with scatterplots and summaries of single variables, then moving on to more complex graphics. Topics covered include plotting continuous and categorical variables, layering information on graphics; faceting grouped data to produce effective “small multiple” plots; transforming data to easily produce visual summaries on the graph such as trend lines, linear fits, error ranges, and boxplots; creating maps, and also some alternatives to maps worth considering when presenting country- or state-level data. Plotting estimates from statistical models and from complex survey designs are also covered. The book then explores the process of refining plots to accomplish common tasks such as highlighting key features of the data, labeling particular items of interest, annotating plots, and changing their overall appearance. Finally, it discusses some strategies for presenting graphical results in different formats, and to different sorts of audiences.

Learning how to visualize data effectively is more than just knowing how to write code that produces figures from data. This book will teach you how to do that. But it will also teach you how to think about the information you want to show, and how to consider the audience you are showing it to—including the most common case, when the audience is yourself.

Data Visualization: A Practical Introduction will be published in 2018 by Princeton University Press. A draft version of the manuscript is available, as a website, at http://socviz.co.


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