There are several ways to navigate between pages and installments in the image viewer.
Next/Previous Page Controls: Use these to move through the pages as you would a printed book. These controls will indicate when you are changing to a different installment with different metadata by alerting you that the next page is in the next item.
Table of Contents Pull Down: This box shows all of the chapter/installment names within the book or issue you are viewing. You can select a title to jump directly to that installment in the viewer.
Next/Previous Item Controls: Use these to skip between installments /chapters in the book or issue you are viewing. Similar to the pull down.