I interviewed Sarah Bakewell last month about her biography of Montaigne for the new Interview of the Month slot on the Blackwell Online website (that interview will be available there very soon). Visiting her website recently I saw her post about Irmgard Keun, a writer I had never heard of. It turned out that Sarah had never heard of her either until she stumbled on one of her books in My Back Pages in Balham.  That gave me an idea for a new series of guest posts, featuring readers on writers or books they have recently discovered.  Sarah has very kindly allowed me to republish her post, the first in a series of what I am unsurprisingly going to call Discoveries. If you would like to contribute, email me at george [at] podularity.com. When I’m working from home there usually comes a point where I have to get up from my desk and rush out into the air, usually on the pretext of going to the supermarket or post office. But sometimes, once I get …