I wish I had read this before my job interview. I feel like I'm getting lowballed when I thought the offer I got was great. I'll definitely read this before my next job interview. Does this apply to freelance rate negotiation too?
Honestly I just screwed it up a few days ago myself. I let myself get backed into the corner of talking about my salary history. And it's not the first time I've done it, not even the first time year since reading that essay.