Christopher Blattman’s third tip is learning how to write well:
Take writing seriously. You will use it no matter your career. Being able to take complex ideas and explain them in short, straightforward, plain sentences is a skill you will use, whether you’re a lawyer, a salesperson, a blogger, or a doctor. You want to learn to think clearly and then write like you speak.
It's simple: if you write your email address here, my words will reach you again.