With some conflicting thoughts, I figured I'd ask for some advice, I have an idea for a novel and potentionally sequels which I am looking forward to developing. My issue is I am unsure if I should do all the planning first or just to dive in. Let me say that the outline for the first book is completed along with a little bit of the second book, however being I hadn't written anything out yet, I am wondering if I should dive in now and wait til afterward to plan the sequels or plan out the sequels in advance. I am aware that most wait til they have an agent however I was wondering if it would be better planning in advance. How do others writing a trilogy or series go about the planning stage? It will be helpful if you also outline, being it would give me better advice. Regardless, how do you suggest going through the process?