Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Coffee is a brewed beverage with a distinct aroma and flavor, prepared from the roasted seeds of the Coffea plant. The seeds are found in coffee "cherries", which grow on trees cultivated in over 70 countries, primarily in equatorial Latin America, Southeast Asia, South Asia and Africa. Green (unroasted) coffee is one of the most traded agricultural commodities in the world. Wild coffee's energizing effect was likely first discovered in the northeast region of Ethiopia. Coffee cultivation first took place in southern Arabia; the earliest credible evidence of coffee-drinking appears in the middle of the 15th century in the Sufi shrines of Yemen. Many studies have examined the health effects of coffee, and whether the overall effects of coffee consumption are positive or negative has been widely disputed. The method of brewing coffee has been found to be important in relation to its effects on health. Learn more about the legendary brewed beverage, its history, preparation and health effects in the following pages.