Statistics textbooks can easily cost over $150. But what if you could get the same information for free? This somewhat unattractive but incredibly informative site provides everything a big, fat, hard-covered stats book does but it in an easily navigable web format. (And did we mention it’s free?) This helpful online book was designed and developed by David Lane at Rice University, with a host of helpful co-authors and funding from the National Science Foundation. All chapters include multiple video presentations on such topics as quantitative variables, histograms, and one-factor ANOVA. This is a great find for anyone who wants to better understand the multitude of fields, from politics to plate tectonics, that depend on statistical modeling.