Books
Are Your Lights On? – Gerald Weinberg
Clean Code – Robert C. Martin
Crucial Conversations – Kerry Paterson, Joseph Grenny
Drive – Daniel Pink
Extreme Programming – Kent Beck
Facts and Fallacies of Software Engineering – Robert Glass
Growing Object-Oriented Software, Guided by Tests – Steve Freeman, Nat Pryce
High Output Management – Andy Grove
On Writing Well – William Zinsser
Practical Object-Oriented Design in Ruby – Sandi Metz
Turn The Ship Around! – David Marquet
The Upside of Stress – Kelly McGonigal
Blogs or Essays
Coding Horror by Jeff Atwood
Irrational Exuberance by Will Larson