I highly recommend this book written by Simon Lancaster (@bespokespeeches), a political speechwriter here in the UK. It's a masterclass in how to write persuasive copy.
The Psychology of Money by @morganhousel, or as I call it: How to Gain the World Without Losing Your Soul.
The E-Myth Revisited from M. E. Gerber. School has never taught me how businesses work, it only trained me to be a good employee. Naturally, you can't build a business with that knowledge only. This book acknowledges that and fills in the gapps. Highly, highly recommended.
Everyone talks about it but I’ll say it again because it’s so insightful to read:
The Focusing Question: “What’s the ONE Thing I can do / such that by doing it / everything else will be easier or unnecessary?”
(people interested in mental models have likely read this)
(reading this I realized how much investing & entrepreneurship have in common, it's all about asymmetric returns)
Eat that Frog by Brian Tracy We overestimate what we can get done in a day, but underestimate what we can accomplish in a year. Identify your hardest task in a day and FINISH IT FIRST Rinse and repeat. Within a year you are in a different galaxy