Here's the checklist and a video explaining the basics.
Checklist
A good project brief talks about these core 4 elements
1. The project
- The type of person & the work
- Time frame
- Budget
2. Our business
- About us
- Our products/services
- Current situation & goals
3. Our content
- Asset list
- Asset details
- Design guidelines
4. Our tools
- Tools we use
- Technical & business requirements
- Testing