From Fedora Project Wiki

One page release notes are short documents intended to be printed on a one-page handout for distribution to users at Events alongside LiveCDs. They explain the Fedora Project, briefly highlight and summarize some of the new features in the release that may be especially relevant to user, sysadmin, and developer audiences, and are intended to answer the newcomer's question of "What is Fedora <Release Number>?" in a way that will make them want to try it out.

For information on the process we use to make one page release notes, see the One page release notes SOP. We also explained the history behind the deliverables that were the predecessors to the one page release notes in an IRC conversation once.