Nudge (book) nudge?" Nudge (book) Nudge: Improving Decisions about Health, Wealth, and Happiness is a book written by University of Chicago economist Richard H. Thaler and Harvard Law School Professor Cass R. Sunstein, first published in 2008. The book draws on research in psychology and behavioral economics to defend libertarian paternalism and active engineering of choice architecture. The book received largely positive reviews. "The Guardian" described it as "never intimidating, always amusing and elucidating: a jolly economic romp but with serious lessons within." It was named one of the best books of 2008 by "The Economist". One of the main justifications for
The Undoing Project Project" was met largely by rave reviews, with Glenn C. Altschuler arguing in the "Pittsburgh Post-Gazette" that it "may well be his best book." Writing in "The New Yorker", law professor Cass Sunstein and economist Richard Thaler praised the book's ability to explain complex concepts to lay readers as well as turn the biographies of Tversky and Kahneman into a page-turner: "He provides a basic primer on the research of Kahneman and Tversky, but almost in passing; what is of interest here is the collaboration between two scientists." Jennifer Senior of "The New York Times" wrote that "At its peak,