'In Happy Days Were Here Again,' William F. Buckley, Jr. offers a collection of his finest essays from the latter part of his long career. Sometimes celebrating, sometimes assailing, Buckley takes on opponents ranging from Mikhail Gorbachev to Carl Sagan to Leonard Bernstein; reflects on the academic scene, the Gulf War, and the idea of sin; and offers appreciations of friends, both right and left. For everyone who appreciates the wit and style of America’s pre-eminent conservative, this is a must-have collection.