Booker Telleferro Ervin II (1930 – 1970) was an American jazz tenor saxophone player perhaps best known for his association with Charles Mingus, with whom he played and recorded from 1956 to 1962. During the 1960s he also led his own quartet and played with Randy Weston. His most highly regarded records are the nine he made for Prestige Records between 1963 and 1966: Exultation, The Freedom Book, 'The Song Book, The Blues Book, The Space Book, Setting The Pace, The Trance, Heavy!. Among his other influential recordings are That's It Candid, Tex Book Tenor Blue Note, and The Book Cooks Bethlehem. He was also a member of Horace Parlan's quartet with whom he recorded Up & Down Blue Note, and Happy Frame of Mind Blue Note.

Ervin studied at Berklee College of Music after teaching himself tenor saxophone while in the United States Air Force.

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