As well as my pile of to be read fiction, I have a pile of non-fiction to be read which are either for research or to promote or study the market.
The Private World of Georgette Heyer by Jane Aikin Hodge.
A History of Shopping by Dorothy Davis which begins with Town Markets in the late Middle Ages.
Cassiobury The Ancient Seat of the Earls of Essex by Paul Rabbits & Sarah Kerenza Priestly.
Kathryn Warner's Edward III with a foreword by Ian Mortimer. "richly detailed, compelling look at one of England's most misunderstood kings ... this is the biography of Edward II for which I have been waiting."
Jane Austen's England by Sue Wilkes.
Good Reads for Authors How to Promote Your Books with Good Reads by Michelle Campbell-Scott. (I began it and applied a few suggestions but writing my novel has kept me too busy to finish it.)
Writers and Artists Year Book 2015. (I intend to read the articles.)
There are a lot of other non-fiction books I intend to read but this list will keep me busy for a while.