Book excerpt: This casebook is the first in its field on electronic discovery and digital evidence. Judge Scheindlin, the author of the landmark Zubulake opinions, is the leading authority on electronic discovery issues in the federal judiciary. Professor Capra is the Reporter to the Advisory Committee on Evidence Rules, a co-author of a five-volume treatise on Evidence, and the principal author of Rule 502. Members of The Sedona Conference? Working Group on Electronic Document Retention and Production, which published The Sedona Principles cited by courts and litigators on a daily basis, contributed commentary and practical guidance.