- How to be an Angel Investor, by Paul Graham of YCombinator
- How to be an Angel Investor Part 2, by Naval Ravikant and Nivi of AngelList
- How to be an Angel Investor Part 3, by Tyler Willis of this site (many additional reading recommendations are on the last slide)
- Ten Principles of Angel Investing, by Joe Lonsdale of Formation 8
- AngelList Investing Guidelines
- Zero to One, by Peter Thiel and Blake Masters (book)
- These resources (and over 40 others) are available in the Angel Investor's Library, which you can download for free below.