A landing page serves as a menu, of sorts, for all of its subpages. It opens with a brief summary of the topic, then presents a structured list of links to subpages, and, optionally, additional material that may be of use.
Note: We are currently finalizing a new standard design for landing pages. Once that's done, we'll finish writing this page.
Writer notes (temp):
This should incorporate the TOC page style from the old "page types" list.