Hi. I'm just getting started on GTD while part way into writing a book. I've gone through the collection process and most of the things I wrote as tasks on my mind (and now in my inbox) relate to the book. Perhaps I don't understand how to process the inbox correctly, but I'm wondering whether the whole book should be my one project (with a ton of action items) or if I should break it into subprojects in KGTD (e.g., gather information on issue A, collect photographs for Chapter 5). If I keep it as a single project, it seems I have an unmanageable number of actions each of which could be eligible for a "next action." I hope I'm making sense. Any suggestions would be appreciated.