Writing More Than One Book? How to Storyboard with a Sequel in Mind

Annette from the UK recently sent me this question:  "I'm currently reading Your Book Starts Here, plus I've been watching your storyboard videos on YouTube. You've helped me come unstuck after years of block with my half-written 'epic', which feels amazing!  I'm writing to you because I'm struggling with how to apply the W structure to a two-book story…