The first rule to learn is that the single fastest way to delete empty pages is to save your document. When you save, empty pages are deleted. Of course, this assumes a few things.
Choose Format > Page Layout > Pagination. Ensure "Before Saving & Printing" is set to Delete Empty Pages.
If you confirm the settings shown above, but the empty pages refuse to go away when you save or print, read on...
If the page in question is using a custom master page, choose Format > Page Layout > Master Page Usage and reassign the default Right/Left masters.
Save your work and the empty page should be gone.
If not, read on...
Another reason that empty pages stick around is if the master pages are using overrides. View the master pages via View > Master Pages and switch back the Body Pages (View > Body Pages). Select Remove Overrides.
Save your work and the empty page should be gone. But... if not, read on...
Yet another reason a page won't go away is if the page contains the start of a new flow (i.e., Flow B) or a disconnected page. Choose Special > Delete Pages and remove the page manually.
If the page disappears, but returns after you update your book, it's likely the book pagination is set to add blank pages to force a new chapter to begin on a specific page side. In the book window, you can choose Format > Page Layout > Pagination and you'll find the same options you saw for single documents. Book commands override the document commands, so I just ignore document pagination and always set it at the book level.
If you are new to FrameMaker and want to get up to speed quickly, join IconLogic's instructor-led, online Introduction to Adobe FrameMaker class. Hope to "see" you there.
About the author: Barbara Binder is the president and founder of Rocky Mountain Training. Barbara has been a trainer for nearly two decades and has been recognized by Adobe as one of the top trainers world-wide.