Betwixt and Between identifies the biases, errors and ambiguities that have run rampant in the biographies on Mary Wollstonecraft, many of them left unchecked and perpetuated from publication to publication. Brenda Ayres investigates the agenda, problems and strengths of eighteen critical biographies, beginning with William Godwin's Memoirs (1798), ending with Charlotte Gordon's Romantic Outlaws (2015) and including ten lesser-known biographies. Betwixt and Between synthesizes the biographies, exposes gaps and contradictions, and attempts to fill and reconcile them, supplying in the process considerable information on Wollstonecraft that has never before been published.

Brenda Ayres is a full professor of nineteenth-century English literature, member of the graduate faculty and Assistant Director of Honors at Liberty University, USA. Publishing extensively in eighteenth- and nineteenth-century literature, she has written over 170 articles and 26 books including What Dog Lovers Know about God (2016); Becoming Mary Wollstonecraft (2017); Mary Wollstonecraft and Religion: Sojourner in a Strange Land (2017); and Biographical Misrepresentations of British Women Writers: A Hall of Mirrors and the Long Nineteenth Century (2017).