These mountains that spit fire have always fascinated humankind. They are both attractive and very, very dangerous, being responsible for some of the most devastating natural disasters, ones that even affected the survival of mankind and caused the phenomena known as the ``volcanic winter``. If you want to know how volcanoes came about, why they erupt, how often does it happen and what are the consequences we face after these eruptions then this is a must-read book for you. It also features separate material on world's most impressive active volcanoes.