Robert Sheckley 
Dimension of Miracles 

'Hilarious SF satire. Douglas Adams said it was the only thing like The Hitchhiker’s Guide to the Galaxy, although written ten years earlier. It’s wonderful’ Neil Gaiman This madcap cosmic farce relates the adventures of the hapless human Carmody, as he attempts to make his way home to Earth after winning the grand prize in the Intergalactic Sweepstake, encountering parallel worlds, incompetent bureaucrats and talking dinosaurs on the way.’The greatest entertainer ever produced by science fiction … a feast of wit and intelligence’ J. G. Ballard