I was just wondering what the protocol is when signing a contract with a publisher. Do you need to contact all of the other publishers that you have submitted your manuscript to and withdraw it? Also, if you are waiting for responses from other publishers and you are offered a contract, can you ask them to wait until you hear back from the other publishers or is it best to accept the first contract you are offered? If not what is an acceptable amount of time you can expect a publisher to wait for you? I intend to go with the contract I've been offered even though I'm waiting for some others to respond, but I was just wondering for future reference.