This newly-revised casebook on electronic discovery is by the field's leading authorities. This edition updates the significant case law in the field and adds several new sections. New coverage includes the preservation, collection and production of information stored on social media arising from the storage of information in the cloud; new search techniques such as concept searching and predictive coding; cooperation among counsel during discovery; guidance on the form of producing ESI; and various e-discovery protocols from around the country. This casebook is a must for any course in e-discovery.