Must-read whitepapers (Design)

I am looking to do light reading over the summer.

What are must-read whitepapers on design?
Examples: the 233 telescoping arm, intake, etc.

Thank you.

We’ve complied a list of recommend readings on our website, many of them are about robot design.

Great list. Some of these are common and referenced regularly on CD but others are completely new to me. Bookmarked.