premise: The World of David Bowie is an album by David Bowie, released in 1970. It contains material from his first album "David Bowie", as well as previously unreleased songs. The track listing was chosen by Bowie himself. The sleeve photo is by Ian Dickson.
hypothesis: David Bowie is featured on the artwork photographed by Ian Dickson.
reason: The context doesn't mention who or what was pictured on the album cover.