"Sensemaking" is the inaugural book in our new series, titled The A. Denis Clift Series on the Intelligence Profession. The Clift Series will present original research on intelligence analysis and the teaching of intelligence. Sensemaking, whereby intelligence professionals would work with executive decisionmakers to explain data that are "sparse, noisy, and uncertain," requires an interpreter and experienced champion to bring about a practicable understanding and acceptance of the concept among intelligence practitioners. David Moore has accomplished that feat. Further, he, along with collaborators in chapters 5 and 7, demonstrate how sensemaking can be accomplished as a collaborative enterprise.