If you're looking to determine where certain pages in your book appear in relation to one another -- especially when the book is printed and lying open -- you can use the 'Organize' tab in your dashboard.
To view the page layout of your book: Navigate to the Organize tab, then click on the section you want to view.
How to interpret what you're seeing in the Organize tab:
The grey square at the top left represents the last page of the previous section; depending on the length of that section, there may or may not be content on that page.
The page directly to the right of the grey square is the Section Title page for that particular section/chapter. By default, Section Title pages will ALWAYS begin on the right side (and will therefore always be an odd page number).
Following those are the rest of the pages in the section. They appear in pairs, as they would if the book were open on a table. (The darker line down the center of each pairing represents the center of the book.)