'In this article, we use Nielsen BookScan data, in particular, the Top 2000 Australian-only titles from 2005-2018, spanning the five years before the collapse of the REDGroup in Australia and the five years afterwards, to examine the sustainability of the midlist in Australia. Midlist titles are often said to be an indispensable part of the publisher’s list, yet the role of the midlist author seems to be increasingly difficult to inhabit from both a creative and a financial point of view. Through the analysis of sales data which shows a rise in the volume of bestsellers, we argue that the ‘thinning out’ of the midlist is leading to lessening returns for Australian authors in this bracket. The steady decline in the profitability of midlist titles indicates that many authorial careers may be becoming increasingly untenable. The following discussion considers the implications for the health of the publishing ecosystem and canvasses alternative strategies for helping Australian authors and publishers to survive.' (Publication abstract)