text: Shepherd Moons received generally positive reviews from critics and became a greater commercial success than Watermark. It went to number one on the UK Albums Chart and peaked at number seventeen on the Billboard 200 in the United States. The album was certified multi-platinum by the British Phonographic Industry and Recording Industry Association of America for shipments of 1.2 million and five million copies, respectively. Between 1991 and 1994, Enya released four singles from Shepherd Moons: "Caribbean Blue", "How Can I Keep from Singing?", "Book of Days", which charted at number ten in the United Kingdom, and "Marble Halls". As with Watermark, Enya supported the album with a worldwide promotional tour that included several interviews and televised performances. In 1993, the album won Enya a Grammy Award for Best New Age Album, the first of four she has won in her career. It was reissued in 1992 and 2009; the latter was a Japanese release with bonus tracks.
  Background and writing
  In September 1988, Enya released her second studio album Watermark. It became an unexpected commercial success, charting around the world helped by its international top-ten hit, "Orinoco Flow". The album propelled Enya to worldwide fame and she spent much of the following year travelling worldwide to promote it through interviews, appearances, and performances. With such a length of time for promotion, Enya felt the priority was to return to the studio and record a new album rather than spend further time planning and completing a concert tour, partly due to the various difficulties involved in recreating her studio-oriented sound in a live setting. Enya worked with her long time recording partners, manager, producer and arranger Nicky Ryan and his wife, lyricist Roma Ryan. The success of Watermark complicated the writing process at first. Enya recalled: "I put a lot of pressure on myself at the beginning ... When I was composing new melodies I kept thinking "Would this have gone on Watermark? Is it as good?" Eventually I had to forget about this and start on a blank canvas and just really go with what felt right in the studio."