Each Tessera Memory Book comes with 42 pages which fit perfectly on our screw posts. If you add additional pages, simply remove a cardboard spacer (found in the binding) and add the additional pages.  Using the screw post extensions that come with every Tessera Book, you can add approximately 30-40 pages to your book. If you would like larger screw post extensions or additional screw posts contact us and we will get you what you need.