Cato Distinguished Senior Fellow James M. Buchanan was honored on his 80th birthday, October 3, with an on‐​line book of tributes from colleagues and former students. Among the contributors was James A. Dorn, Cato’s vice president for academic affairs and editor of the Cato Journal. Buchanan is a professor of economics at George Mason University and the advisory general director of the James M. Buchanan Center for Political Economy. He received the Nobel Memorial Prize in Economic Sciences in 1986. He is the author of many books including The Calculus of Consent (with Gordon Tullock); Cost and Choice; and an autobiography, Better Than Plowing.