The influence of Miles Davis's "second great quintet," consisting of Davis (trumpet), Wayne Shorter (tenor saxophone), Herbie Hancock (piano), Ron Carter (bass), and Tony Williams (drums) continues to resonate. Jazz musicians, historians, and critics have celebrated the group for its improvisational communication, openness, and its transitional status between hard bop and the emerging free jazz of the 1960s, creating a synthesis described by one quintet member as "controlled freedom." The book provides a critical analytical study of the Davis quintet studio recordings released between 1965-68, including E.S.P., Miles Smiles, Sorcerer, Nefertiti, Miles in the Sky, and Filles de Kilimanjaro.