Book excerpt: PATRICIA UNTERMANS SAN FRANCISCO FOOD LOVERS POCKET GUIDE offers an intrepid, unapologetically discriminating, and refreshingly down-to-earth selection of the best and most interesting eateries, markets, and other food- and drink-related spots in San Francisco, the East Bay, Marin County, and the wine country. Now in a compact format, this book is a hip-pocket must for locals and tourists alike, covering everything from sophisticated California cuisine to authentic Mission taquerias.