My Bookshelf
You can tell a lot about a person by what's on their bookshelf. Go on, have a look.
The Power of Habit
How to Make Sense of Any Mess 
Atomic Habits
The Body
Never split the difference
Content design
Strategic Writing for UX
Discussing Design
Nicely Said
Conversational design
Letters to a Young Writer
Hacker, Maker, Teacher, Thief
Don't Make Me Think
Made to stick
UX Microcopy
Design of everyday things
The Economist Style Guide