I published my first children's book a month ago. I have a couple of book signings at Barnes and Nobles set up in the coming weeks. I slowly trying to get a hold of other bookstores and schools. I have my next children's book ready and wondering when is the right time to publish it? I heard that you should not publish your next book until your marketing plan is established and you are getting regular sales for your first book. But I also heard that multiple books market each other. My first book is called Seeing Me Is Loving Me and it's illustrated by my six year old son.