A journalist who had unprecedented access to Guns n’ Roses at their peak delivers a big, brash history of the band’s charismatic, fantastically talented and idiosyncratic leader—W. Axl Rose Even in the world of rock and roll, a figure like Axl Rose doesn’t come along very often. Mercurial and brilliant, deluded and imperious, Rose defies easy description or analysis. Few people have studied Rose as closely as Mick Wall has. Traveling with Guns n’ Roses and writing about them in the late 1980s and early 1990s, Wall first earned Axl’s trust and later his fury. W.A.R. goes back to the beginning, revealing Rose’s childhood influences (and how he got his name), and tracking the birth of the band and their enormous success with albums like “Appetite for Destruction” and “Use Your Illusion.” With fame and money came substance abuse and infighting, and a lead singer who morphed from eccentric to seemingly unhinged. Wall’s book is richly detailed and offers surprising new views on...