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This multiple was created by George Maciunas, ostensible leader of the avant-garde movement Fluxus, in conjunction with Yoko Ono’s 1971 retrospective This is Not Here at the Everson Museum of Art in Syracuse, NY. Yoko Ono, artist, peace activist, and widow of John Lennon has used smiles as a recurring theme since the 1960s. "It is the simplest thing to make yourself healthy and make others feel good," she says about smiling.

The author of this book, Arnold Shaw (1909–1989) was a songwriter, pianist, composer, and music publisher who wrote a dozen books on 20th century pop music, including two books on Frank Sinatra and a biography of African American pop sensation Harry Belafonte. He founded the Arnold Shaw Popular Music Research Center at the University of Nevada, Las Vegas in 1985 and taught there for a decade. This 600-page long guide to the history of R&B has eight parts, with seven chapters each. Those chapters are broken out into 25 sections each, which are called grooves.