What are simultaneous submissions?
We encourage any writers who choose to do simultaneous submissions – submitting the same manuscript to more than one publisher at the same time – to be up-front and honest in their query letters to publishers that they are doing this, and to send out submit to a small number of publishers at the same time (for example, 3-4). If a manuscript is accepted by one publisher, the author should immediately notify all other publishers to withdraw the manuscript from their consideration – that way they don’t invest time and effort reading a manuscript that has already been accepted elsewhere.