U2 were Formed at a Dublin Secondary School by Adam Clayton, Bono, The Edge and Larry Mullen Jr. Like most bands, they wanted to be among the best in the world. By 1991, with Achtung Baby in the pipeline and War, The Unforgettable Fire and The Joshua Tree behind them, they were arguably deserving of that intention.

Yet there was more to the band than the stadium records that made their fans deliriously happy and the music's creators artistically and lucratively fulfilled. Their second album, October, opened the four piece into a spiritual journey that fed their later work. Their double album Rattle and Hum proved one of the greatest torchbearers of American music of its time. And then there were Zooropa and Pop - dance oriented albums that showed the initially-punk oriented quartet exploring effects, sounds and territories that few of their contemporaries dared contemplate.

That they should exist forty years after their debut is testament to the will, fortitude and versatility U2 holds. Their most recent works Songs of Innocence and Songs of Experience have proven their most reflective and perhaps their most autobiographical. What lies next for U2 only the band know, but this book delves into their past work, without leaving a passenger behind.