D'oh moment, that one. I also decided to pick a single colour to use for some graphic elements in the page layouts and throughout the book. Fonts still need some attention - they haven't had any yet. Oh and the pictures of course, too! I know these are all the same photos over and over again - I'm trying to keep some of the shots as a surprise, so all the images are just placeholders for now. Did work out the export settings to form a web PDF of the book and it is looking okay. The spread vs pages options in InDesign export help hold things together in a pdf with two pages per page, or single pages.