The third edition of the only comprehensive casebook on electronic discovery and evidence, authored by the field's leading authorities, incorporates the 2015 amendments to the Federal Rules of Civil Procedure; updates case law in the field; and expands discussions of cooperation, proportionality, social media, and professional responsibility obligations. Two new chapters have been added, one on the latest search techniques, including Technology-Assisted Review, that all lawyers must understand; and another on emerging issues with the surveillance, search, and seizure of electronically stored information by law enforcement in criminal cases. This casebook is a 'must' for any course in e-discovery, and an important resource for civil procedure, criminal law, evidence, and ethics courses.