Jeeves in the Morning by P.G.Wodehouse (in England, titled Joy in the Morning)

P.G. Wodehouse is the funniest writer I know. He's not sarcastic or ironic, in the style of so many, but just a master of the situation comedy kind of funny, with slightly goofy but lovable characters getting themselves into and out of all kinds of messes. This novel chronicles the wacky misadventures of the genial and somewhat dim English aristocrat Bertie Wooster, as he is once again rescued by his erudite and clever butler Jeeves. I often laughed out loud uncontrollably while reading it, so be prepared to embarrass yourself if you read this in public. I was alone at the time, so nobody was around to assume I was coming unhinged.