each copy of the box set came with an individually numbered certificate of authenticity. A 56-page, hardcover book contains quotes from Shankar and Harrison, commenting on their long friendship and the projects represented on the discs. Both artists' families supplied photographs for the book, while other pictures are credited to professional photographers Clive Arrowsmith, Dezo Hoffmann, Jan Steward and Carolyn Jones. The photo used on the front of the box was one of a series of pictures that Arrowsmith took at Friar Park in 1974, over the period when the Music Festival orchestra were recording and rehearsing there. The book's foreword was supplied by American composer Philip Glass, with whom Shankar had collaborated on the 1990 album Passages. Glass writes of the Shankar–Harrison musical partnership as having "[made] waves ... on a tremendous scale and for a passionate worldwide audience", adding that its influence "reverberates, as clearly, even today". Release The box set was issued on Dark Horse Records, distributed by Rhino Entertainment, on 18 October 2010 in Britain, and 19 October in the United States. Announcing the release in August that year, Consequence of Sound described it as "a certified dream for world music/Beatles fans". Collaborations coincided with East Meets West Music's Shankar reissues such as the Nine Decades series and the DVD release of the long-unavailable Raga, which features 1968 footage of Harrison as well as the soundtrack he produced and originally issued on Apple. In America, the box set was available solely through Harrison's official website and the online retailer Amazon. At this time the Harrison estate undertook a similarly low-key campaign for the 40th anniversary of All Things Must Pass, which coincided with several reissue projects relating to the Beatles. Collaborations entered Billboard magazine's Top World Albums list at number 3, its peak position on that chart. Having been Harrison's assistant at Dark Horse during the 1970s, Olivia Harrison promoted the release; in an interview with Spinner, she described the reissue project as a "labor of love for me". Reception In a five-star review for Goldmine magazine, Gillian Gaar considered that Collaborations "succeeded on crossover appeal" and had praise for the "mesmerizing" Music Festival album and concert DVD. Reviewing the box set for Uncut, John Lewis found Harrison "a little too respectful" in his deference to Shankar on the 1970s projects, although he admired Chants of India, saying: "there is a heaviness and intensity to each