...no previous biographer has so expertly and convincingly analyzed Welles the creative dynamo, from his ebullient love of what Callow calls 'Higher Hokum' to the depths of rue in his recurring themes of loss and betrayal ... One-Man Band is an exhilarating reminder that his true greatness began once he’d put Kane’s virtuoso precocity behind him.
In the years since Welles’s death in 1985, many books about him have filled their pages with varying degrees of pedantic journalism, but Simon Callow’s prose is something to bask in. The distinguished actor and director understands Welles the way Welles understood Falstaff. His tone is sympathetic, often amused and occasionally aghast ... One-Man Band is the richest as well as the best of Mr. Callow’s three books on the protean rogue he chose as his subject. It is the author’s monument, his Chimes at Midnight.”