We plan on using Bowker to get our ISBNs and bar codes for both children's books as well as the non-fiction books we are writing. We have also studied a little about publishing (but mainly platform-related things) under our membership to Michael Hyatt's Platform University which is now closed but highly sought for. He was the former CEO of Thomas Nelson Publishers and is an author himself. What questions can we help you with in regards to publishing? Those are some things we know and me specifically since I do most of the research on that for our family.