Nikita writes frequently about relationships of people, with themselves, others and with their social and professional environments. Her latest release What Do You See When You Look in the Mirror? (2021, HarperCollins) is a collection of short fiction the secret inner lives of her characters as they grapple with love, loss, grief and mental health.

Her book The Reason Is You (2019, HarperCollins) explores grief and recovery from loss and the constraints of traditional relationships; Letters to My Ex (2018, HarperCollins) studies a broken engagement solely through the written communication that follows; Every Time It Rains (2017, HarperCollins) deals with enduring emotional damage caused by domestic abuse; Like a Love Song (2016, HarperCollins) is an endearing coming-of-age story of a troubled teenager; After All This Time (2015, Penguin Random House) is a confrontation with the past in the face of incurable medical condition; Right Here Right Now (2014, Penguin Random House) follows the new life of an amnesiac in an identity crisis.