Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Nokia Corporation is a Finnish multinational communications corporation that is headquartered in Keilaniemi, Espoo, a city neighbouring Finland''s capital Helsinki.Nokia is engaged in the manufacturing of mobile devices and in converging Internet and communications industries, with over 123,000 employees in 120 countries, sales in more than 150 countries and global annual revenue of EUR 41 billion and operating profit of 1.2 billion as of 2009.It is the world''s largest manufacturer of mobile telephones: its global device market share was about 39% in Q4 2009, up from 37% in Q4 2008 and 38% in Q3 2009, and its converged device market share was about 40% in Q4, up from 35% in Q3 2009.Nokia produces mobile devices for every major market segment and protocol, including GSM, CDMA, and W-CDMA. Nokia offers Internet services such as applications, games, music,maps, media and messaging through its Ovi platform.