This meticulously edited second volume of the Edinburgh Collected Letters gives us Mansfield the writer, artist and editor in her experimental prime, reflecting on her work in innovative ways that expand and deepen our sense of her oeuvre. The clustered arrangement, embracing some of the key figures in her writing life, including Ottoline Morrell, Anne Estelle Rice and Virginia Woolf, shows the leading modernist honing her self-awareness as a writer, contributing in vital ways to developing some of the techniques and ideas now understood to be signatures of modernism – rhythm, ellipsis, the porous self and the moment in time.