There are two books I would recommend the first published in 2005 'Tapas, Authentic Appetizers and Finger Food from the Bars and Restaurants of Spain' by Pepita Aris - isbn: 1844761576. The second 'New Tapas, Today's Best Bar Food from Spain' by Fiona Dunlop, published in 2006 - isbn: 1845331826. Check them out at your local library before deciding to buy copies.

The Hart Brother's Modern Spanish Cookery (Quadrille 2006) is good, Sam and Eddie Hart are the proud owners of Fino and Barafino in London. They are both hugely acclaimed tapas bars. For a truly comprehensive guide to Tapas, try 1080 recipes, published by Phaidon last year. It's a monster of a book; just about every Spanish dish you could dream up is there, from the titchiest tapas to the stickiest pud.