It was forty years ago today” that Sgt. Pepper’s Lonely Hearts Club Band by The Beatles was released, an LP which changed the face of popular culture and continues to top public and critical polls of the greatest albums ever made. The Act You’ve Known for All These Years reconstructs the life and times of Sgt. Pepper, the cultural backstory of the band and rock's turbulent early adulthood. Weaving the activities of the Beatles in with those of their contemporaries and rivals notably Bob Dylan, the Beach Boys and Pink Floyd heralded music critic Clinton Heylin reveals the inspirations and explodes the myths behind this talismanic, iconic album and "the summer of love" itself. In addition, the book surveys what happened next, telling the history of the LP’s "afterlife" from 1967 to the present day. Featuring interviews both with those who were there at the time and those who followed in the Beatles’ wake, The Act You’ve Known for All These Years is the definitive book on the defining LP of the pop era.