'This is a compellingly argued book, and it represents a serious and substantial addition to Shelley scholarship. What is particularly refreshing, however, is that Callaghan is not simply an expert scholarly reader of Shelley. She quite clearly loves his poetry and is not afraid to say so, or to reach for superlatives when only superlatives will do. It is this passion for the poetry and for understanding the depths of Shelley’s artistry that drives her close reading and animates her account of individual texts. Surely a poet as attuned to the revolutionary potential of reading as was Shelley would be pleased to have found such a reader.'Daisy Hay, Keats-Shelley Journal