Possibly Tokyo's narrowest sake shop, Echizenya stocks a deep range of sakes from various craft breweries - some highly regarded, some rather obscure. (Their selection of Dassai sake from Yamaguchi Prefecture is particularly thorough.) If you're a sake fan, this place is definitely worth browsing on your way home after a pilgrimage to the contemporary art museum or Blue Bottle Coffee.
This book will introduce you to more than twenty of Japan's favorite specialty foods that are less well known abroad, along with a guide to the best places in Tokyo to try them and expert tips on what to order. From Bento.com.