Pioneers of Law and Economics (with Lloyd Cohen) is now available in paperback. 
You can get it for 20% off the cover price at the link above (discounted price = $36).
There are essays focusing on: Ronald Coase, Aaron Director, George Stigler, Armen Alchian, Harold Demsetz, Benjamin Klein, James Buchanan, Gordon Tullock, Henry Manne, Richard Posner, Gary Becker, William Landes, Richard Epstein, Guido Calabresi, Frank Easterbrook, Daniel Fischel, Steven Shavell and A. Mitchell Polinsky.
Contributors are: Harold Demsetz, Nuno Garoupa, Fernando Gómez-Pomar, Mark Grady, Tom Hazlett, Keith Hylton, Kate Litvak, Andrew Morriss, Sam Peltzman, John Pfaff, Larry Ribstein, Stephen Stigler, Robert Tollison, Tom Ulen, Susan Woodward, and Joshua Wright.
