Beth O’Leary worked in children's publishing before becoming a full time author. The Flatshare is her debut novel. The idea for The Flatshare came to Beth when her doctor boyfriend was doing long night shifts as part of his training and they could go weeks without seeing each other, but she could track his life by how many cups of coffee were left on the counter, by how much he’d eaten and whether the bookmark in his novel had changed locations. It made her wonder – what could you learn about someone if you lived together but never overlapped?