101 UX Principles - Become a better digital product designer
Porsche Design Book One - The ultimate notebook experience from Porsche
UI Recipes - Weekly 15 min lessons on UI design from the hottest apps
Upcase by thoughtbot - An online learning platform for developers - now free
UX Design Process Best Practices - Documentation to move design forward
Hot Right Now: Volume 2. - Discover the latest key web design trends of 2019