See the Calendar page for milestones dates. These are development checkpoints, to make sure you are on track to complete your project on time.
Organization
Style Tiles:
Two unique style tiles at minimum including: adjectives, color scheme, font choices, typographical hierarchy, design patterns, and a logo. Examples can be found here
Content Inventory and Wireframes:
Content Inventory consists of what content you will need for your site. Examples: Site Logo, navigation, hero image. Wireframe layouts for mobile, tablet and desktop breakpoints. An example can be found here