Books

Five books on data analytics and research methods by Vivek H. Patil. All available to read online for free.

The Books

Five books covering the quantitative skills that business professionals use most. Each stands on its own. Every book is available to read online at no cost. Print and digital editions are available through Amazon.

Margin of Error

Statistics for a World That Needs Better Decisions

Statistics taught the way it should be: as a mode of reasoning, not a collection of formulas. This book starts with the question every analyst faces (how much should I trust this number?) and builds from there. It covers descriptive statistics, probability, sampling distributions, confidence intervals, hypothesis testing, regression, and ANOVA, all with real business data and plain language. No calculus required.

Formats: HTML (free) | PDF | EPUB    Trim: 6 x 9 in.

Run the Numbers

Data Analysis with R and the Tidyverse

A practical introduction to data analysis in R, built around the Tidyverse ecosystem. It covers data import, cleaning, transformation, visualization with ggplot2, and reproducible reporting with Quarto. The book includes live code cells you can run directly in the browser. It assumes no prior programming experience.

Formats: HTML (free) | PDF | EPUB    Trim: 6 x 9 in.

Good Data Starts Here

Survey Design for Business Professionals

Most bad analysis starts with bad data, and most bad data starts with a bad survey. This book covers the decisions that determine whether survey data is usable: how to write questions that measure what you intend, how to structure response scales, how to sample, and how to pilot. Written for practitioners and students who need to collect primary data.

Formats: HTML (free) | PDF | EPUB    Trim: 5.5 x 8.5 in.

Evidence First

Business Research Methods from Problem to Report

The complete research process, from formulating a question to writing up findings. This book covers research design, literature reviews, measurement, sampling, qualitative and quantitative methods, ethics, and reporting. Written for graduate students and working analysts who need to design studies that hold up to scrutiny.

Formats: HTML (free) | PDF | EPUB    Trim: 6 x 9 in.

Make It Visible

Visual Analytics and Data Storytelling

Analysis is only useful if someone understands it. This book covers data visualization from first principles: perception, design, interactivity, geographic mapping, dashboards, and the ethical responsibilities of anyone who shows data to an audience. It uses R and ggplot2 for static graphics and introduces tools for interactive and web-based visualization.

Formats: HTML (free) | PDF | EPUB    Trim: 6 x 9 in.

All Five Books

All Five Books

$89

Get PDF and EPUB editions of all five books. Every book is also available to read online for free.