'[This book] aims … to 'stimulate future research in auroral research, and to interest young scientists in further auroral investigations', such a goal is certainly reached thanks to the excellent review papers, written by people that are not only specialists in their own fields, but also in the communication of the relevant results achieved there. … Little room is left for doubt that, owing to their perseverance, present and new generations of scientists will learn interesting things from this mammoth book.' Salvatore Esposito, Contemporary Physics