Sides is the fourth studio album by English musician and composer Anthony Phillips. It was released in April 1979 by Arista Records in the United Kingdom and in June 1979 on Passport Records in the United States. After completing Private Parts & Pieces (1978), an album of home recordings that Phillips had recorded years before but remained unreleased, Phillips returned to making a commercial record. The UK release saw the first 5,000 copies of Sides packaged with a Collectors Album edition of Private Parts & Pieces.