I can recommend these.
・MAKE: Bootstrapper's Handbook
・Marketing Lessons from the Grateful Dead by David Meerman Scott & Brian Halligan
Marketing Lessons from the Grateful Dead is really fun😂
Hope that helps!
some non business books which helped me:
Mindset by Carol Dweck Atomic Habits by James Clear
My go-to book is The Underdog Advantage. A great framework that teaches you how to be scrappy!
Now for and old school book on creating a "community", I like Swim With The Sharks Without Being Eaten Alive.. Although the book is specifically about sales, at its core is really about community building.