the roasting process and the water used to make the brew are just a few of the factors that influence the taste of what we drink. Champion barista and coffee expert James Hoffmann examines these key factors, looking at varieties of coffee, the influence of terroir, how it is harvested and processed, the roasting methods used, through to the way in which the beans are brewed. Country by country - from Bolivia to Zambia - he then identifies key characteristics and the methods that determine the quality of that country's output. Along the way we learn about everything from the development of the espresso machine, to why strength guides on supermarket coffee are really not good news. This is the first book to chart the coffee production of over 35 countries, encompassing knowledge never previously published outside the coffee industry. For everyone who wants to understand more about coffee and its wonderful nuances and possibilities, this is the book to have.