One of the most critical issues that attorneys must address in litigation is the need to protect their work product. Despite the importance of this issue, some lawyers have forgotten the basic elements of the work product doctrine. They might remember Hickman v. Taylor[1] from law school, together with Justice Jackson’s famous injunction against preparing a case “on wits borrowed from the adversary.” Probe more deeply into nuanced issues such as the discovery of fact or opinion work product, however, and the answers may not come so readily.