Espresso Shot by Cleo Coyle, seventh in the series, published September 30, 2008. Set in Greenwich village, NYC.
Clare Cosi and her ex-husband Matt jointly run an upscale coffeeshop in Manhattan. Matt's about to remarry and begs Clare to stay close to his fiancee, who might be in danger from unknown persons. Clare herself is involved with a policeman, Mike, so she doesn't mind that much though it keeps her from managing her coffeeshop.
Lots of coffee talk in this novel. Mochaccino - espresso with chocolate syrup, steamed milk, foam, topped with whipped cream. Doppio expresso - double shot of espresso. Hazelnut-toffee latte with foam. Macchiato - espresso dotted with a spoonful of foamed milk.
Don't think I've heard of those much.