Rework was a great book to read. Here are some insights about it.
Who are the authors?
Jason Fried and David Heinemeier Hansson are the founders of the software company Basecamp, formerly named 37signals. Basecamp is a well known project management tool. Today, 10-years after Basecamp first hit the market, nearly 15,000,000 people have worked on a project with Basecamp! And every week, thousands of companies sign up to use Basecamp. 
Who is this book for?
Most business books give you the same old advice: write a business plan, study the competition, seek investors, yadda yadda. If you’re looking for a book like that, put this one back on the shelf. REWORK is the perfect playbook for anyone who’s ever dreamed of doing it on their own. Entrepreneurs, small-business owners, and artists who don’t want to starve will all find valuable guidance in these pages. 
What’s this book about?
This book presents a new way to do business that is counter culture and the way things are going now. Read it and you’ll know why plans are actually harmful, why you don’t need outside investors, and why you’re better off ignoring the competition. The truth is, you need less than you think. You don’t need to be a workaholic. You don’t need to staff up. You don’t need to waste time on paperwork or meetings. You don’t even need an office. Those are all just excuses. 
My favourite quote
“What you do is what matters, not what you think or say or plan.”
You can find a list of great quotes from this book here.
Should you read it?
In conclusion I would definetly recommend the book for you to read. It helped me a lot to gain a fresh perspective on lots of things regarding business and marketing. If you already read it share your favourite quote in the comments section bellow.