Paul Auster's novels concentrate on the problematic gray areas of human life. His use of the detective form represents a world in which the truth seems withheld and difficult to unravel. Auster's novels such as 'The Invention of Solitude' and the 'Moon Palace' examine the world just beyond the apparent and offer an interpretation of the concept of meaning. The relationships in his works, especially those between fathers and sons, bring out the distances between people. Auster's form, language and themes capture his preoccupation with finding a center from which to make sense of the world.