As a marketer, what books have you read that helped you grow?

I have a confession. I'm a Petroleum Engineering major who's in love with marketing. Sometimes, I think I'm too in over my head.😅 I started doing "marketing" with social media management as my first foray into anything remotely associated with digital marketing (show of hands if you started the popular way). And then, I think I lost a bit of love for social media marketing, and moved on quickly to something shiny—email marketing. This was heaven while it lasted. I sold personal financial management courses and eBooks for a popular consultant here in my country. The conversations in the inboxes were so direct and personal that it always felt like I was looking directly at, and talking to the person's soul.😅 I also tried my hands on SEO and content strategy. Doesn't it just feel amazing how you pick up so many useful micro-skills for digital marketing? That's always so intriguing. Now, I do product marketing, thanks to charting newer territories.🥂 I find it intriguing how numerous teams work together to solve a problem. Be that small-scale, or global. And meeting a lot of amazing makers and marketers here launching really helpful products here daily (some of which have been time-savers for me) reinforced my reason why I want to identify with this industry. I read a book recently by Gabriel Weinberg and Justin Mares called, "Traction." Recommended by a senior colleague in marketing. The ideas in the book just made so much sense and held so many insights for me. And it made me understand one thing, "whatever you want to get better at, reading books help you navigate there faster." As a marketer, what book(s) gave you your best "aha!" moment?