"Requiem" by Mack Wilberg is a 2008 publication by Oxford University Press, Incorporated, consisting of 72 pages of sheet music. This textbook, focusing on religious and general music genres, is written in English and provides choral arrangements in a format suitable for adult learners and university students. With a compact size of 11 x 8.5 inches and weighing 7.8 oz, this book is a valuable resource for those interested in exploring different styles and patterns of choral music.