'Intervals is an exceptional book, for which every deserved superlative seems cliched, in part because the language of illness, death and bereavement often feels too hollowed out by use to accommodate the magnitude of those experiences... It would require a huge shift in the way we understand ourselves as interdependent, as valuable beyond our individual, measurable outputs and assets; about the way we appreciate care as reciprocal, as granting us a way not only to provide comfort and to alleviate distress, but also to appreciate fully our humanity. This angry, loving, sorrowing and profound book is a magnificent starting point for that radical imaginative act.'
– Alex Clark, Observer